diff options
Diffstat (limited to 'net')
78 files changed, 874 insertions, 3078 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 2fc8fe2..b6e0eea 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -380,6 +380,9 @@ int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, } else { vhdr->h_vlan_encapsulated_proto = htons(len); } + + skb->protocol = htons(ETH_P_8021Q); + skb->nh.raw = skb->data; } /* Before delegating work to the lower layer, enter our MAC-address */ diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 113c175f1..c8b7dc2 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1417,10 +1417,13 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, /* * Size check to see if ddp->deh_len was crap * (Otherwise we'll detonate most spectacularly - * in the middle of recvmsg()). + * in the middle of atalk_checksum() or recvmsg()). */ - if (skb->len < sizeof(*ddp)) + if (skb->len < sizeof(*ddp) || skb->len < (len_hops & 1023)) { + pr_debug("AppleTalk: dropping corrupted frame (deh_len=%u, " + "skb->len=%u)\n", len_hops & 1023, skb->len); goto freeit; + } /* * Any checksums. Note we don't do htons() on this == is assumed to be diff --git a/net/atm/clip.c b/net/atm/clip.c index ebb5d0c..8c38258 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -261,14 +261,6 @@ static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb) spin_unlock_irqrestore(&PRIV(dev)->xoff_lock, flags); } -static void clip_neigh_destroy(struct neighbour *neigh) -{ - DPRINTK("clip_neigh_destroy (neigh %p)\n", neigh); - if (NEIGH2ENTRY(neigh)->vccs) - printk(KERN_CRIT "clip_neigh_destroy: vccs != NULL !!!\n"); - NEIGH2ENTRY(neigh)->vccs = (void *) NEIGHBOR_DEAD; -} - static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb) { DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n", neigh, skb); @@ -342,7 +334,6 @@ static struct neigh_table clip_tbl = { /* parameters are copied from ARP ... */ .parms = { .tbl = &clip_tbl, - .neigh_destructor = clip_neigh_destroy, .base_reachable_time = 30 * HZ, .retrans_time = 1 * HZ, .gc_staletime = 60 * HZ, diff --git a/net/ax25/Kconfig b/net/ax25/Kconfig index a8993a0..43dd86f 100644 --- a/net/ax25/Kconfig +++ b/net/ax25/Kconfig @@ -1,30 +1,27 @@ # # Amateur Radio protocols and AX.25 device configuration # -# 19971130 Now in an own category to make correct compilation of the -# AX.25 stuff easier... -# Joerg Reuter DL1BKE <jreuter@yaina.de> -# 19980129 Moved to net/ax25/Config.in, sourcing device drivers. menuconfig HAMRADIO depends on NET bool "Amateur Radio support" help If you want to connect your Linux box to an amateur radio, answer Y - here. You want to read <http://www.tapr.org/tapr/html/pkthome.html> and - the AX25-HOWTO, available from <http://www.tldp.org/docs.html#howto>. + here. You want to read <http://www.tapr.org/tapr/html/pkthome.html> + and more specifically about AX.25 on Linux + <http://www.linux-ax25.org/>. Note that the answer to this question won't directly affect the kernel: saying N will just cause the configurator to skip all the questions about amateur radio. comment "Packet Radio protocols" - depends on HAMRADIO && NET + depends on HAMRADIO config AX25 tristate "Amateur Radio AX.25 Level 2 protocol" - depends on HAMRADIO && NET - ---help--- + depends on HAMRADIO + help This is the protocol used for computer communication over amateur radio. It is either used by itself for point-to-point links, or to carry other protocols such as tcp/ip. To use it, you need a device @@ -52,6 +49,7 @@ config AX25 config AX25_DAMA_SLAVE bool "AX.25 DAMA Slave support" + default y depends on AX25 help DAMA is a mechanism to prevent collisions when doing AX.25 @@ -59,23 +57,38 @@ config AX25_DAMA_SLAVE from clients (called "slaves") and redistributes it to other slaves. If you say Y here, your Linux box will act as a DAMA slave; this is transparent in that you don't have to do any special DAMA - configuration. (Linux cannot yet act as a DAMA server.) If unsure, - say N. + configuration. Linux cannot yet act as a DAMA server. This option + only compiles DAMA slave support into the kernel. It still needs to + be enabled at runtime. For more about DAMA see + <http://www.linux-ax25.org>. If unsure, say Y. + +# placeholder until implemented +config AX25_DAMA_MASTER + bool 'AX.25 DAMA Master support' + depends on AX25_DAMA_SLAVE && BROKEN + help + DAMA is a mechanism to prevent collisions when doing AX.25 + networking. A DAMA server (called "master") accepts incoming traffic + from clients (called "slaves") and redistributes it to other slaves. + If you say Y here, your Linux box will act as a DAMA master; this is + transparent in that you don't have to do any special DAMA + configuration. Linux cannot yet act as a DAMA server. This option + only compiles DAMA slave support into the kernel. It still needs to + be explicitly enabled, so if unsure, say Y. -# bool ' AX.25 DAMA Master support' CONFIG_AX25_DAMA_MASTER config NETROM tristate "Amateur Radio NET/ROM protocol" depends on AX25 - ---help--- + help NET/ROM is a network layer protocol on top of AX.25 useful for routing. A comprehensive listing of all the software for Linux amateur radio users as well as information about how to configure an AX.25 port is - contained in the AX25-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. You also might want to - check out the file <file:Documentation/networking/ax25.txt>. More - information about digital amateur radio in general is on the WWW at + contained in the Linux Ham Wiki, available from + <http://www.linux-ax25.org>. You also might want to check out the + file <file:Documentation/networking/ax25.txt>. More information about + digital amateur radio in general is on the WWW at <http://www.tapr.org/tapr/html/pkthome.html>. To compile this driver as a module, choose M here: the @@ -84,27 +97,25 @@ config NETROM config ROSE tristate "Amateur Radio X.25 PLP (Rose)" depends on AX25 - ---help--- + help The Packet Layer Protocol (PLP) is a way to route packets over X.25 connections in general and amateur radio AX.25 connections in particular, essentially an alternative to NET/ROM. A comprehensive listing of all the software for Linux amateur radio users as well as information about how to configure an AX.25 port is - contained in the AX25-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. You also might want to - check out the file <file:Documentation/networking/ax25.txt>. More - information about digital amateur radio in general is on the WWW at + contained in the Linux Ham Wiki, available from + <http://www.linux-ax25.org>. You also might want to check out the + file <file:Documentation/networking/ax25.txt>. More information about + digital amateur radio in general is on the WWW at <http://www.tapr.org/tapr/html/pkthome.html>. To compile this driver as a module, choose M here: the module will be called rose. - menu "AX.25 network device drivers" - depends on HAMRADIO && NET && AX25!=n + depends on HAMRADIO && AX25 source "drivers/net/hamradio/Kconfig" endmenu - diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index 4c914df..d342e89 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -319,7 +319,7 @@ static int __hidp_send_ctrl_message(struct hidp_session *session, return 0; } -static int inline hidp_send_ctrl_message(struct hidp_session *session, +static inline int hidp_send_ctrl_message(struct hidp_session *session, unsigned char hdr, unsigned char *data, int size) { int err; @@ -679,6 +679,27 @@ static void hidp_close(struct hid_device *hid) { } +static const struct { + __u16 idVendor; + __u16 idProduct; + unsigned quirks; +} hidp_blacklist[] = { + /* Apple wireless Mighty Mouse */ + { 0x05ac, 0x030c, HID_QUIRK_MIGHTYMOUSE | HID_QUIRK_INVERT_HWHEEL }, + + { } /* Terminating entry */ +}; + +static void hidp_setup_quirks(struct hid_device *hid) +{ + unsigned int n; + + for (n = 0; hidp_blacklist[n].idVendor; n++) + if (hidp_blacklist[n].idVendor == le16_to_cpu(hid->vendor) && + hidp_blacklist[n].idProduct == le16_to_cpu(hid->product)) + hid->quirks = hidp_blacklist[n].quirks; +} + static inline void hidp_setup_hid(struct hidp_session *session, struct hidp_connadd_req *req) { struct hid_device *hid = session->hid; @@ -708,6 +729,8 @@ static inline void hidp_setup_hid(struct hidp_session *session, struct hidp_conn hid->hidinput_input_event = hidp_hidinput_event; + hidp_setup_quirks(hid); + list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list) hidp_send_report(session, report); diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index def2e40..8d566c1 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -197,8 +197,8 @@ struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br, rcu_read_lock(); fdb = __br_fdb_get(br, addr); - if (fdb) - atomic_inc(&fdb->use_count); + if (fdb && !atomic_inc_not_zero(&fdb->use_count)) + fdb = NULL; rcu_read_unlock(); return fdb; } diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index 7712d76..5439a3c 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -61,7 +61,7 @@ static int brnf_filter_vlan_tagged __read_mostly = 1; #define brnf_filter_vlan_tagged 1 #endif -static __be16 inline vlan_proto(const struct sk_buff *skb) +static inline __be16 vlan_proto(const struct sk_buff *skb) { return vlan_eth_hdr(skb)->h_vlan_encapsulated_proto; } diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 58d13f2..a285897 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -126,7 +126,9 @@ void br_stp_disable_port(struct net_bridge_port *p) /* called under bridge lock */ void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr) { - unsigned char oldaddr[6]; + /* should be aligned on 2 bytes for compare_ether_addr() */ + unsigned short oldaddr_aligned[ETH_ALEN >> 1]; + unsigned char *oldaddr = (unsigned char *)oldaddr_aligned; struct net_bridge_port *p; int wasroot; @@ -151,11 +153,14 @@ void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr) br_become_root_bridge(br); } -static const unsigned char br_mac_zero[6]; +/* should be aligned on 2 bytes for compare_ether_addr() */ +static const unsigned short br_mac_zero_aligned[ETH_ALEN >> 1]; /* called under bridge lock */ void br_stp_recalculate_bridge_id(struct net_bridge *br) { + const unsigned char *br_mac_zero = + (const unsigned char *)br_mac_zero_aligned; const unsigned char *addr = br_mac_zero; struct net_bridge_port *p; diff --git a/net/core/dev.c b/net/core/dev.c index cf71614..4dc93cc 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -751,13 +751,10 @@ int dev_change_name(struct net_device *dev, char *newname) else strlcpy(dev->name, newname, IFNAMSIZ); - err = device_rename(&dev->dev, dev->name); - if (!err) { - hlist_del(&dev->name_hlist); - hlist_add_head(&dev->name_hlist, dev_name_hash(dev->name)); - raw_notifier_call_chain(&netdev_chain, - NETDEV_CHANGENAME, dev); - } + device_rename(&dev->dev, dev->name); + hlist_del(&dev->name_hlist); + hlist_add_head(&dev->name_hlist, dev_name_hash(dev->name)); + raw_notifier_call_chain(&netdev_chain, NETDEV_CHANGENAME, dev); return err; } @@ -1741,8 +1738,8 @@ static int ing_filter(struct sk_buff *skb) if (dev->qdisc_ingress) { __u32 ttl = (__u32) G_TC_RTTL(skb->tc_verd); if (MAX_RED_LOOP < ttl++) { - printk(KERN_WARNING "Redir loop detected Dropping packet (%s->%s)\n", - skb->input_dev->name, skb->dev->name); + printk(KERN_WARNING "Redir loop detected Dropping packet (%d->%d)\n", + skb->iif, skb->dev->ifindex); return TC_ACT_SHOT; } @@ -1750,10 +1747,10 @@ static int ing_filter(struct sk_buff *skb) skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_INGRESS); - spin_lock(&dev->ingress_lock); + spin_lock(&dev->queue_lock); if ((q = dev->qdisc_ingress) != NULL) result = q->enqueue(skb, q); - spin_unlock(&dev->ingress_lock); + spin_unlock(&dev->queue_lock); } @@ -1775,8 +1772,8 @@ int netif_receive_skb(struct sk_buff *skb) if (!skb->tstamp.off_sec) net_timestamp(skb); - if (!skb->input_dev) - skb->input_dev = skb->dev; + if (!skb->iif) + skb->iif = skb->dev->ifindex; orig_dev = skb_bond(skb); diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 215f1bff..7174ced 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -143,7 +143,7 @@ int fib_rules_lookup(struct fib_rules_ops *ops, struct flowi *fl, } } - err = -ENETUNREACH; + err = -ESRCH; out: rcu_read_unlock(); @@ -152,6 +152,28 @@ out: EXPORT_SYMBOL_GPL(fib_rules_lookup); +static int validate_rulemsg(struct fib_rule_hdr *frh, struct nlattr **tb, + struct fib_rules_ops *ops) +{ + int err = -EINVAL; + + if (frh->src_len) + if (tb[FRA_SRC] == NULL || + frh->src_len > (ops->addr_size * 8) || + nla_len(tb[FRA_SRC]) != ops->addr_size) + goto errout; + + if (frh->dst_len) + if (tb[FRA_DST] == NULL || + frh->dst_len > (ops->addr_size * 8) || + nla_len(tb[FRA_DST]) != ops->addr_size) + goto errout; + + err = 0; +errout: + return err; +} + int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) { struct fib_rule_hdr *frh = nlmsg_data(nlh); @@ -173,6 +195,10 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) if (err < 0) goto errout; + err = validate_rulemsg(frh, tb, ops); + if (err < 0) + goto errout; + rule = kzalloc(ops->rule_size, GFP_KERNEL); if (rule == NULL) { err = -ENOMEM; @@ -260,6 +286,10 @@ int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) if (err < 0) goto errout; + err = validate_rulemsg(frh, tb, ops); + if (err < 0) + goto errout; + list_for_each_entry(rule, ops->rules_list, list) { if (frh->action && (frh->action != rule->action)) continue; @@ -374,7 +404,7 @@ int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family) return -EAFNOSUPPORT; rcu_read_lock(); - list_for_each_entry(rule, ops->rules_list, list) { + list_for_each_entry_rcu(rule, ops->rules_list, list) { if (idx < cb->args[0]) goto skip; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 3183142..841e3f3 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -140,6 +140,8 @@ static int neigh_forced_gc(struct neigh_table *tbl) n->dead = 1; shrunk = 1; write_unlock(&n->lock); + if (n->parms->neigh_cleanup) + n->parms->neigh_cleanup(n); neigh_release(n); continue; } @@ -211,6 +213,8 @@ static void neigh_flush_dev(struct neigh_table *tbl, struct net_device *dev) NEIGH_PRINTK2("neigh %p is stray.\n", n); } write_unlock(&n->lock); + if (n->parms->neigh_cleanup) + n->parms->neigh_cleanup(n); neigh_release(n); } } @@ -582,9 +586,6 @@ void neigh_destroy(struct neighbour *neigh) kfree(hh); } - if (neigh->parms->neigh_destructor) - (neigh->parms->neigh_destructor)(neigh); - skb_queue_purge(&neigh->arp_queue); dev_put(neigh->dev); @@ -675,6 +676,8 @@ static void neigh_periodic_timer(unsigned long arg) *np = n->next; n->dead = 1; write_unlock(&n->lock); + if (n->parms->neigh_cleanup) + n->parms->neigh_cleanup(n); neigh_release(n); continue; } @@ -1328,6 +1331,8 @@ void neigh_parms_destroy(struct neigh_parms *parms) kfree(parms); } +static struct lock_class_key neigh_table_proxy_queue_class; + void neigh_table_init_no_netlink(struct neigh_table *tbl) { unsigned long now = jiffies; @@ -1376,7 +1381,8 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl) init_timer(&tbl->proxy_timer); tbl->proxy_timer.data = (unsigned long)tbl; tbl->proxy_timer.function = neigh_proxy_process; - skb_queue_head_init(&tbl->proxy_queue); + skb_queue_head_init_class(&tbl->proxy_queue, + &neigh_table_proxy_queue_class); tbl->last_flush = now; tbl->last_rand = now + tbl->parms.reachable_time * 20; @@ -2088,8 +2094,11 @@ void __neigh_for_each_release(struct neigh_table *tbl, } else np = &n->next; write_unlock(&n->lock); - if (release) + if (release) { + if (n->parms->neigh_cleanup) + n->parms->neigh_cleanup(n); neigh_release(n); + } } } } diff --git a/net/core/netpoll.c b/net/core/netpoll.c index da10194..4581ece 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -471,6 +471,13 @@ int __netpoll_rx(struct sk_buff *skb) if (skb->len < len || len < iph->ihl*4) goto out; + /* + * Our transport medium may have padded the buffer out. + * Now We trim to the true length of the frame. + */ + if (pskb_trim_rcsum(skb, len)) + goto out; + if (iph->protocol != IPPROTO_UDP) goto out; diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 74a9a32..4b01496 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -129,6 +129,7 @@ #include <linux/ioport.h> #include <linux/interrupt.h> #include <linux/capability.h> +#include <linux/freezer.h> #include <linux/delay.h> #include <linux/timer.h> #include <linux/list.h> @@ -3333,6 +3334,8 @@ static int pktgen_thread_worker(void *arg) t->control &= ~(T_REMDEV); } + try_to_freeze(); + set_current_state(TASK_INTERRUPTIBLE); } diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 6055074..33ea8ea 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -621,7 +621,8 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) if (err < 0) goto errout; - iw += IW_EV_POINT_OFF; + /* Payload is at an offset in buffer */ + iw = iw_buf + IW_EV_POINT_OFF; } #endif /* CONFIG_NET_WIRELESS_RTNETLINK */ diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 820761f..336958f 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -197,61 +197,6 @@ nodata: } /** - * alloc_skb_from_cache - allocate a network buffer - * @cp: kmem_cache from which to allocate the data area - * (object size must be big enough for @size bytes + skb overheads) - * @size: size to allocate - * @gfp_mask: allocation mask - * - * Allocate a new &sk_buff. The returned buffer has no headroom and - * tail room of size bytes. The object has a reference count of one. - * The return is the buffer. On a failure the return is %NULL. - * - * Buffers may only be allocated from interrupts using a @gfp_mask of - * %GFP_ATOMIC. - */ -struct sk_buff *alloc_skb_from_cache(struct kmem_cache *cp, - unsigned int size, - gfp_t gfp_mask) -{ - struct sk_buff *skb; - u8 *data; - - /* Get the HEAD */ - skb = kmem_cache_alloc(skbuff_head_cache, - gfp_mask & ~__GFP_DMA); - if (!skb) - goto out; - - /* Get the DATA. */ - size = SKB_DATA_ALIGN(size); - data = kmem_cache_alloc(cp, gfp_mask); - if (!data) - goto nodata; - - memset(skb, 0, offsetof(struct sk_buff, truesize)); - skb->truesize = size + sizeof(struct sk_buff); - atomic_set(&skb->users, 1); - skb->head = data; - skb->data = data; - skb->tail = data; - skb->end = data + size; - - atomic_set(&(skb_shinfo(skb)->dataref), 1); - skb_shinfo(skb)->nr_frags = 0; - skb_shinfo(skb)->gso_size = 0; - skb_shinfo(skb)->gso_segs = 0; - skb_shinfo(skb)->gso_type = 0; - skb_shinfo(skb)->frag_list = NULL; -out: - return skb; -nodata: - kmem_cache_free(skbuff_head_cache, skb); - skb = NULL; - goto out; -} - -/** * __netdev_alloc_skb - allocate an skbuff for rx on a specific device * @dev: network device to receive on * @length: length to allocate @@ -463,6 +408,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask) memcpy(n->cb, skb->cb, sizeof(skb->cb)); C(len); C(data_len); + C(mac_len); C(csum); C(local_df); n->cloned = 1; @@ -495,7 +441,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask) n->tc_verd = SET_TC_VERD(skb->tc_verd,0); n->tc_verd = CLR_TC_OK2MUNGE(n->tc_verd); n->tc_verd = CLR_TC_MUNGED(n->tc_verd); - C(input_dev); + C(iif); #endif skb_copy_secmark(n, skb); #endif diff --git a/net/core/sock.c b/net/core/sock.c index 8d65d64..27c4f62 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -808,7 +808,7 @@ lenout: * * (We also register the sk_lock with the lock validator.) */ -static void inline sock_lock_init(struct sock *sk) +static inline void sock_lock_init(struct sock *sk) { sock_lock_init_class_and_name(sk, af_family_slock_key_strings[sk->sk_family], diff --git a/net/core/wireless.c b/net/core/wireless.c index 9936ab1..b07fe27 100644 --- a/net/core/wireless.c +++ b/net/core/wireless.c @@ -2,7 +2,7 @@ * This file implement the Wireless Extensions APIs. * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 1997-2006 Jean Tourrilhes, All Rights Reserved. + * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved. * * (As all part of the Linux kernel, this file is GPL) */ @@ -76,6 +76,9 @@ * o Change length in ESSID and NICK to strlen() instead of strlen()+1 * o Make standard_ioctl_num and standard_event_num unsigned * o Remove (struct net_device *)->get_wireless_stats() + * + * v10 - 16.3.07 - Jean II + * o Prevent leaking of kernel space in stream on 64 bits. */ /***************************** INCLUDES *****************************/ @@ -427,6 +430,21 @@ static const int event_type_size[] = { IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */ }; +/* Size (in bytes) of various events, as packed */ +static const int event_type_pk_size[] = { + IW_EV_LCP_PK_LEN, /* IW_HEADER_TYPE_NULL */ + 0, + IW_EV_CHAR_PK_LEN, /* IW_HEADER_TYPE_CHAR */ + 0, + IW_EV_UINT_PK_LEN, /* IW_HEADER_TYPE_UINT */ + IW_EV_FREQ_PK_LEN, /* IW_HEADER_TYPE_FREQ */ + IW_EV_ADDR_PK_LEN, /* IW_HEADER_TYPE_ADDR */ + 0, + IW_EV_POINT_PK_LEN, /* Without variable payload */ + IW_EV_PARAM_PK_LEN, /* IW_HEADER_TYPE_PARAM */ + IW_EV_QUAL_PK_LEN, /* IW_HEADER_TYPE_QUAL */ +}; + /************************ COMMON SUBROUTINES ************************/ /* * Stuff that may be used in various place or doesn't fit in one @@ -1217,7 +1235,7 @@ static int rtnetlink_standard_get(struct net_device * dev, memcpy(buffer + IW_EV_POINT_OFF, request, request_len); /* Use our own copy of wrqu */ wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF - + IW_EV_LCP_LEN); + + IW_EV_LCP_PK_LEN); /* No extra arguments. Trivial to handle */ ret = handler(dev, &info, wrqu, NULL); @@ -1229,8 +1247,8 @@ static int rtnetlink_standard_get(struct net_device * dev, /* Get a temp copy of wrqu (skip pointer) */ memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, - ((char *) request) + IW_EV_LCP_LEN, - IW_EV_POINT_LEN - IW_EV_LCP_LEN); + ((char *) request) + IW_EV_LCP_PK_LEN, + IW_EV_POINT_LEN - IW_EV_LCP_PK_LEN); /* Calculate space needed by arguments. Always allocate * for max space. Easier, and won't last long... */ @@ -1240,7 +1258,7 @@ static int rtnetlink_standard_get(struct net_device * dev, (wrqu_point.data.length > descr->max_tokens)) extra_size = (wrqu_point.data.length * descr->token_size); - buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF; + buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF; #ifdef WE_RTNETLINK_DEBUG printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n", dev->name, extra_size, buffer_size); @@ -1254,15 +1272,15 @@ static int rtnetlink_standard_get(struct net_device * dev, /* Put wrqu in the right place (just before extra). * Leave space for IWE header and dummy pointer... - * Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned... + * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned. */ - memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF, + memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF, ((char *) &wrqu_point) + IW_EV_POINT_OFF, - IW_EV_POINT_LEN - IW_EV_LCP_LEN); - wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN); + IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN); + wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN); /* Extra comes logically after that. Offset +12 bytes. */ - extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN; + extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN; /* Call the handler */ ret = handler(dev, &info, wrqu, extra); @@ -1270,11 +1288,11 @@ static int rtnetlink_standard_get(struct net_device * dev, /* Calculate real returned length */ extra_size = (wrqu->data.length * descr->token_size); /* Re-adjust reply size */ - request->len = extra_size + IW_EV_POINT_LEN; + request->len = extra_size + IW_EV_POINT_PK_LEN; /* Put the iwe header where it should, i.e. scrap the * dummy pointer. */ - memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN); + memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN); #ifdef WE_RTNETLINK_DEBUG printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size); @@ -1331,10 +1349,10 @@ static inline int rtnetlink_standard_set(struct net_device * dev, #endif /* WE_RTNETLINK_DEBUG */ /* Extract fixed header from request. This is properly aligned. */ - wrqu = &request->u; + wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN); /* Check if wrqu is complete */ - hdr_len = event_type_size[descr->header_type]; + hdr_len = event_type_pk_size[descr->header_type]; if(request_len < hdr_len) { #ifdef WE_RTNETLINK_DEBUG printk(KERN_DEBUG @@ -1359,7 +1377,7 @@ static inline int rtnetlink_standard_set(struct net_device * dev, /* Put wrqu in the right place (skip pointer) */ memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, - wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN); + wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN); /* Don't forget about the event code... */ wrqu = &wrqu_point; @@ -1483,7 +1501,7 @@ static inline int rtnetlink_private_get(struct net_device * dev, hdr_len = extra_size; extra_size = 0; } else { - hdr_len = IW_EV_POINT_LEN; + hdr_len = IW_EV_POINT_PK_LEN; } /* Check if wrqu is complete */ @@ -1514,7 +1532,7 @@ static inline int rtnetlink_private_get(struct net_device * dev, memcpy(buffer + IW_EV_POINT_OFF, request, request_len); /* Use our own copy of wrqu */ wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF - + IW_EV_LCP_LEN); + + IW_EV_LCP_PK_LEN); /* No extra arguments. Trivial to handle */ ret = handler(dev, &info, wrqu, (char *) wrqu); @@ -1523,7 +1541,7 @@ static inline int rtnetlink_private_get(struct net_device * dev, char * extra; /* Buffer for full reply */ - buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF; + buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF; #ifdef WE_RTNETLINK_DEBUG printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n", @@ -1538,15 +1556,15 @@ static inline int rtnetlink_private_get(struct net_device * dev, /* Put wrqu in the right place (just before extra). * Leave space for IWE header and dummy pointer... - * Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned... + * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned. */ - memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF, - ((char *) request) + IW_EV_LCP_LEN, - IW_EV_POINT_LEN - IW_EV_LCP_LEN); - wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN); + memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF, + ((char *) request) + IW_EV_LCP_PK_LEN, + IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN); + wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN); /* Extra comes logically after that. Offset +12 bytes. */ - extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN; + extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN; /* Call the handler */ ret = handler(dev, &info, wrqu, extra); @@ -1556,11 +1574,11 @@ static inline int rtnetlink_private_get(struct net_device * dev, if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) extra_size = adjust_priv_size(descr->get_args, wrqu); /* Re-adjust reply size */ - request->len = extra_size + IW_EV_POINT_LEN; + request->len = extra_size + IW_EV_POINT_PK_LEN; /* Put the iwe header where it should, i.e. scrap the * dummy pointer. */ - memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN); + memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN); #ifdef WE_RTNETLINK_DEBUG printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size); @@ -1641,14 +1659,14 @@ static inline int rtnetlink_private_set(struct net_device * dev, /* Does it fits in wrqu ? */ if((descr->set_args & IW_PRIV_SIZE_FIXED) && (extra_size <= IFNAMSIZ)) { - hdr_len = IW_EV_LCP_LEN + extra_size; + hdr_len = IW_EV_LCP_PK_LEN + extra_size; extra_size = 0; } else { - hdr_len = IW_EV_POINT_LEN; + hdr_len = IW_EV_POINT_PK_LEN; } /* Extract fixed header from request. This is properly aligned. */ - wrqu = &request->u; + wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN); /* Check if wrqu is complete */ if(request_len < hdr_len) { @@ -1675,7 +1693,7 @@ static inline int rtnetlink_private_set(struct net_device * dev, /* Put wrqu in the right place (skip pointer) */ memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF, - wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN); + wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN); /* Does it fits within bounds ? */ if(wrqu_point.data.length > (descr->set_args & @@ -1738,7 +1756,7 @@ int wireless_rtnetlink_get(struct net_device * dev, iw_handler handler; /* Check length */ - if(len < IW_EV_LCP_LEN) { + if(len < IW_EV_LCP_PK_LEN) { printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n", dev->name, len); return -EINVAL; @@ -1822,7 +1840,7 @@ int wireless_rtnetlink_set(struct net_device * dev, iw_handler handler; /* Check length */ - if(len < IW_EV_LCP_LEN) { + if(len < IW_EV_LCP_PK_LEN) { printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n", dev->name, len); return -EINVAL; diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index a0e7cd1..e33a9ed 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -191,7 +191,6 @@ extern void dccp_send_sync(struct sock *sk, const u64 seq, const enum dccp_pkt_type pkt_type); extern void dccp_write_xmit(struct sock *sk, int block); -extern void dccp_write_xmit_timer(unsigned long data); extern void dccp_write_space(struct sock *sk); extern void dccp_init_xmit_timers(struct sock *sk); diff --git a/net/dccp/proto.c b/net/dccp/proto.c index cf28c53..6607b7b 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -575,7 +575,7 @@ static int do_dccp_getsockopt(struct sock *sk, int level, int optname, if (get_user(len, optlen)) return -EFAULT; - if (len < sizeof(int)) + if (len < (int)sizeof(int)) return -EINVAL; dp = dccp_sk(sk); @@ -589,9 +589,11 @@ static int do_dccp_getsockopt(struct sock *sk, int level, int optname, (__be32 __user *)optval, optlen); case DCCP_SOCKOPT_SEND_CSCOV: val = dp->dccps_pcslen; + len = sizeof(val); break; case DCCP_SOCKOPT_RECV_CSCOV: val = dp->dccps_pcrlen; + len = sizeof(val); break; case 128 ... 191: return ccid_hc_rx_getsockopt(dp->dccps_hc_rx_ccid, sk, optname, diff --git a/net/dccp/timer.c b/net/dccp/timer.c index b038a0a..0197a41 100644 --- a/net/dccp/timer.c +++ b/net/dccp/timer.c @@ -262,7 +262,7 @@ out: } /* Transmit-delay timer: used by the CCIDs to delay actual send time */ -void dccp_write_xmit_timer(unsigned long data) +static void dccp_write_xmit_timer(unsigned long data) { struct sock *sk = (struct sock *)data; struct dccp_sock *dp = dccp_sk(sk); diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c index 3cbfddc..82d58a9 100644 --- a/net/decnet/dn_fib.c +++ b/net/decnet/dn_fib.c @@ -63,7 +63,7 @@ static struct { int error; u8 scope; -} dn_fib_props[RTA_MAX+1] = { +} dn_fib_props[RTN_MAX+1] = { [RTN_UNSPEC] = { .error = 0, .scope = RT_SCOPE_NOWHERE }, [RTN_UNICAST] = { .error = 0, .scope = RT_SCOPE_UNIVERSE }, [RTN_LOCAL] = { .error = 0, .scope = RT_SCOPE_HOST }, @@ -276,6 +276,9 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta struct dn_fib_info *ofi; int nhs = 1; + if (r->rtm_type > RTN_MAX) + goto err_inval; + if (dn_fib_props[r->rtm_type].scope > r->rtm_scope) goto err_inval; diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c index b6c98ac..5e86dd5 100644 --- a/net/decnet/dn_rules.c +++ b/net/decnet/dn_rules.c @@ -109,8 +109,6 @@ errout: static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = { FRA_GENERIC_POLICY, - [FRA_SRC] = { .type = NLA_U16 }, - [FRA_DST] = { .type = NLA_U16 }, }; static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) @@ -133,7 +131,7 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb, int err = -EINVAL; struct dn_fib_rule *r = (struct dn_fib_rule *)rule; - if (frh->src_len > 16 || frh->dst_len > 16 || frh->tos) + if (frh->tos) goto errout; if (rule->table == RT_TABLE_UNSPEC) { @@ -150,10 +148,10 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb, } } - if (tb[FRA_SRC]) + if (frh->src_len) r->src = nla_get_le16(tb[FRA_SRC]); - if (tb[FRA_DST]) + if (frh->dst_len) r->dst = nla_get_le16(tb[FRA_DST]); r->src_len = frh->src_len; @@ -176,10 +174,10 @@ static int dn_fib_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh, if (frh->dst_len && (r->dst_len != frh->dst_len)) return 0; - if (tb[FRA_SRC] && (r->src != nla_get_le16(tb[FRA_SRC]))) + if (frh->src_len && (r->src != nla_get_le16(tb[FRA_SRC]))) return 0; - if (tb[FRA_DST] && (r->dst != nla_get_le16(tb[FRA_DST]))) + if (frh->dst_len && (r->dst != nla_get_le16(tb[FRA_DST]))) return 0; return 1; @@ -249,6 +247,7 @@ int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb) static struct fib_rules_ops dn_fib_rules_ops = { .family = AF_DECnet, .rule_size = sizeof(struct dn_fib_rule), + .addr_size = sizeof(u16), .action = dn_fib_rule_action, .match = dn_fib_rule_match, .configure = dn_fib_rule_configure, diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig index a64be6c..6ef766e 100644 --- a/net/ieee80211/Kconfig +++ b/net/ieee80211/Kconfig @@ -38,7 +38,7 @@ config IEEE80211_CRYPT_WEP Include software based cipher suites in support of IEEE 802.11's WEP. This is needed for WEP as well as 802.1x. - This can be compiled as a modules and it will be called + This can be compiled as a module and it will be called "ieee80211_crypt_wep". config IEEE80211_CRYPT_CCMP @@ -51,7 +51,7 @@ config IEEE80211_CRYPT_CCMP (aka TGi, WPA, WPA2, WPA-PSK, etc.) for use with CCMP enabled networks. - This can be compiled as a modules and it will be called + This can be compiled as a module and it will be called "ieee80211_crypt_ccmp". config IEEE80211_CRYPT_TKIP @@ -66,7 +66,7 @@ config IEEE80211_CRYPT_TKIP (aka TGi, WPA, WPA2, WPA-PSK, etc.) for use with TKIP enabled networks. - This can be compiled as a modules and it will be called + This can be compiled as a module and it will be called "ieee80211_crypt_tkip". source "net/ieee80211/softmac/Kconfig" diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c index c976dd7..2ce5b69 100644 --- a/net/ipv4/cipso_ipv4.c +++ b/net/ipv4/cipso_ipv4.c @@ -1933,6 +1933,11 @@ int cipso_v4_skbuff_getattr(const struct sk_buff *skb, &cipso_ptr[6], secattr); break; + case CIPSO_V4_TAG_RANGE: + ret_val = cipso_v4_parsetag_rng(doi_def, + &cipso_ptr[6], + secattr); + break; } skbuff_getattr_return: diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 1fba643..cac06c4 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -493,6 +493,11 @@ static int rtm_to_fib_config(struct sk_buff *skb, struct nlmsghdr *nlh, cfg->fc_nlinfo.pid = NETLINK_CB(skb).pid; cfg->fc_nlinfo.nlh = nlh; + if (cfg->fc_type > RTN_MAX) { + err = -EINVAL; + goto errout; + } + nlmsg_for_each_attr(attr, nlh, sizeof(struct rtmsg), remaining) { switch (attr->nla_type) { case RTA_DST: @@ -771,6 +776,8 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb ) .nl_u = { .ip4_u = { .daddr = frn->fl_addr, .tos = frn->fl_tos, .scope = frn->fl_scope } } }; + + frn->err = -ENOENT; if (tb) { local_bh_disable(); @@ -782,6 +789,7 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb ) frn->nh_sel = res.nh_sel; frn->type = res.type; frn->scope = res.scope; + fib_res_put(&res); } local_bh_enable(); } @@ -796,6 +804,9 @@ static void nl_fib_input(struct sock *sk, int len) struct fib_table *tb; skb = skb_dequeue(&sk->sk_receive_queue); + if (skb == NULL) + return; + nlh = (struct nlmsghdr *)skb->data; if (skb->len < NLMSG_SPACE(0) || skb->len < nlh->nlmsg_len || nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*frn))) { @@ -808,7 +819,7 @@ static void nl_fib_input(struct sock *sk, int len) nl_fib_lookup(frn, tb); - pid = nlh->nlmsg_pid; /*pid of sending process */ + pid = NETLINK_CB(skb).pid; /* pid of sending process */ NETLINK_CB(skb).pid = 0; /* from kernel */ NETLINK_CB(skb).dst_group = 0; /* unicast */ netlink_unicast(sk, skb, pid, MSG_DONTWAIT); diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c index b837c33..c660c07 100644 --- a/net/ipv4/fib_rules.c +++ b/net/ipv4/fib_rules.c @@ -171,8 +171,6 @@ static struct fib_table *fib_empty_table(void) static struct nla_policy fib4_rule_policy[FRA_MAX+1] __read_mostly = { FRA_GENERIC_POLICY, - [FRA_SRC] = { .type = NLA_U32 }, - [FRA_DST] = { .type = NLA_U32 }, [FRA_FLOW] = { .type = NLA_U32 }, }; @@ -183,8 +181,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb, int err = -EINVAL; struct fib4_rule *rule4 = (struct fib4_rule *) rule; - if (frh->src_len > 32 || frh->dst_len > 32 || - (frh->tos & ~IPTOS_TOS_MASK)) + if (frh->tos & ~IPTOS_TOS_MASK) goto errout; if (rule->table == RT_TABLE_UNSPEC) { @@ -201,10 +198,10 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb, } } - if (tb[FRA_SRC]) + if (frh->src_len) rule4->src = nla_get_be32(tb[FRA_SRC]); - if (tb[FRA_DST]) + if (frh->dst_len) rule4->dst = nla_get_be32(tb[FRA_DST]); #ifdef CONFIG_NET_CLS_ROUTE @@ -242,10 +239,10 @@ static int fib4_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh, return 0; #endif - if (tb[FRA_SRC] && (rule4->src != nla_get_be32(tb[FRA_SRC]))) + if (frh->src_len && (rule4->src != nla_get_be32(tb[FRA_SRC]))) return 0; - if (tb[FRA_DST] && (rule4->dst != nla_get_be32(tb[FRA_DST]))) + if (frh->dst_len && (rule4->dst != nla_get_be32(tb[FRA_DST]))) return 0; return 1; @@ -309,6 +306,7 @@ static size_t fib4_rule_nlmsg_payload(struct fib_rule *rule) static struct fib_rules_ops fib4_rules_ops = { .family = AF_INET, .rule_size = sizeof(struct fib4_rule), + .addr_size = sizeof(u32), .action = fib4_rule_action, .match = fib4_rule_match, .configure = fib4_rule_configure, diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 2f1fdae..3dad12e 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -89,7 +89,7 @@ static const struct { int error; u8 scope; -} fib_props[RTA_MAX + 1] = { +} fib_props[RTN_MAX + 1] = { { .error = 0, .scope = RT_SCOPE_NOWHERE, diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 72b3036..214c347 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1123,6 +1123,9 @@ err: return fa_head; } +/* + * Caller must hold RTNL. + */ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg) { struct trie *t = (struct trie *) tb->tb_data; @@ -1527,7 +1530,6 @@ static int trie_leaf_remove(struct trie *t, t_key key) t->revision++; t->size--; - preempt_disable(); tp = NODE_PARENT(n); tnode_free((struct tnode *) n); @@ -1537,11 +1539,13 @@ static int trie_leaf_remove(struct trie *t, t_key key) rcu_assign_pointer(t->trie, trie_rebalance(t, tp)); } else rcu_assign_pointer(t->trie, NULL); - preempt_enable(); return 1; } +/* + * Caller must hold RTNL. + */ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg) { struct trie *t = (struct trie *) tb->tb_data; @@ -1720,6 +1724,9 @@ up: return NULL; /* Ready. Root of trie */ } +/* + * Caller must hold RTNL. + */ static int fn_trie_flush(struct fib_table *tb) { struct trie *t = (struct trie *) tb->tb_data; diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 1c6a084..8cedb2a 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1255,9 +1255,9 @@ out: */ void ip_mc_rejoin_group(struct ip_mc_list *im) { +#ifdef CONFIG_IP_MULTICAST struct in_device *in_dev = im->interface; -#ifdef CONFIG_IP_MULTICAST if (im->multiaddr == IGMP_ALL_HOSTS) return; diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index 5170f5c..57b0221 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -166,13 +166,9 @@ static inline int arp_packet_match(const struct arphdr *arphdr, return 0; } - for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned long); i++) { - unsigned long odev; - memcpy(&odev, outdev + i*sizeof(unsigned long), - sizeof(unsigned long)); - ret |= (odev - ^ ((const unsigned long *)arpinfo->outiface)[i]) - & ((const unsigned long *)arpinfo->outiface_mask)[i]; + for (i = 0, ret = 0; i < IFNAMSIZ; i++) { + ret |= (outdev[i] ^ arpinfo->outiface[i]) + & arpinfo->outiface_mask[i]; } if (FWINV(ret != 0, ARPT_INV_VIA_OUT)) { diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c index adf25f9..6bcfdf6 100644 --- a/net/ipv4/netfilter/ip_nat_standalone.c +++ b/net/ipv4/netfilter/ip_nat_standalone.c @@ -253,14 +253,17 @@ ip_nat_local_fn(unsigned int hooknum, enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); if (ct->tuplehash[dir].tuple.dst.ip != - ct->tuplehash[!dir].tuple.src.ip -#ifdef CONFIG_XFRM - || ct->tuplehash[dir].tuple.dst.u.all != - ct->tuplehash[!dir].tuple.src.u.all -#endif - ) + ct->tuplehash[!dir].tuple.src.ip) { if (ip_route_me_harder(pskb, RTN_UNSPEC)) ret = NF_DROP; + } +#ifdef CONFIG_XFRM + else if (ct->tuplehash[dir].tuple.dst.u.all != + ct->tuplehash[!dir].tuple.src.u.all) + if (ip_xfrm_me_harder(pskb)) + ret = NF_DROP; +#endif + } return ret; } diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index e965b33..42b0802 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -411,12 +411,10 @@ checkentry(const char *tablename, "has invalid config pointer!\n"); return 0; } - clusterip_config_entry_get(cipinfo->config); } else { /* Case B: This is a new rule referring to an existing * clusterip config. */ cipinfo->config = config; - clusterip_config_entry_get(cipinfo->config); } } else { /* Case C: This is a completely new clusterip config */ diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c index a26404d..9acc018 100644 --- a/net/ipv4/netfilter/ipt_ULOG.c +++ b/net/ipv4/netfilter/ipt_ULOG.c @@ -61,6 +61,7 @@ #include <linux/netfilter_ipv4/ipt_ULOG.h> #include <net/sock.h> #include <linux/bitops.h> +#include <asm/unaligned.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>"); @@ -236,9 +237,9 @@ static void ipt_ulog_packet(unsigned int hooknum, /* copy hook, prefix, timestamp, payload, etc. */ pm->data_len = copy_len; - pm->timestamp_sec = skb->tstamp.off_sec; - pm->timestamp_usec = skb->tstamp.off_usec; - pm->mark = skb->mark; + put_unaligned(skb->tstamp.off_sec, &pm->timestamp_sec); + put_unaligned(skb->tstamp.off_usec, &pm->timestamp_usec); + put_unaligned(skb->mark, &pm->mark); pm->hook = hooknum; if (prefix != NULL) strncpy(pm->prefix, prefix, sizeof(pm->prefix)); diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c index e4d3ef1..15aa3db 100644 --- a/net/ipv4/netfilter/nf_nat_standalone.c +++ b/net/ipv4/netfilter/nf_nat_standalone.c @@ -245,14 +245,16 @@ nf_nat_local_fn(unsigned int hooknum, enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); if (ct->tuplehash[dir].tuple.dst.u3.ip != - ct->tuplehash[!dir].tuple.src.u3.ip -#ifdef CONFIG_XFRM - || ct->tuplehash[dir].tuple.dst.u.all != - ct->tuplehash[!dir].tuple.src.u.all -#endif - ) + ct->tuplehash[!dir].tuple.src.u3.ip) { if (ip_route_me_harder(pskb, RTN_UNSPEC)) ret = NF_DROP; + } +#ifdef CONFIG_XFRM + else if (ct->tuplehash[dir].tuple.dst.u.all != + ct->tuplehash[!dir].tuple.src.u.all) + if (ip_xfrm_me_harder(pskb)) + ret = NF_DROP; +#endif } return ret; } diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 74c4d10..3834b10 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2458,11 +2458,18 @@ void __init tcp_init(void) sysctl_max_syn_backlog = 128; } - /* Allow no more than 3/4 kernel memory (usually less) allocated to TCP */ - sysctl_tcp_mem[0] = (1536 / sizeof (struct inet_bind_hashbucket)) << order; - sysctl_tcp_mem[1] = sysctl_tcp_mem[0] * 4 / 3; + /* Set the pressure threshold to be a fraction of global memory that + * is up to 1/2 at 256 MB, decreasing toward zero with the amount of + * memory, with a floor of 128 pages. + */ + limit = min(nr_all_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT); + limit = (limit * (nr_all_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11); + limit = max(limit, 128UL); + sysctl_tcp_mem[0] = limit / 4 * 3; + sysctl_tcp_mem[1] = limit; sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2; + /* Set per-socket limits to no more than 1/128 the pressure threshold */ limit = ((unsigned long)sysctl_tcp_mem[1]) << (PAGE_SHIFT - 7); max_share = min(4UL*1024*1024, limit); diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 5c8caf4..34ae3f1 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -77,18 +77,19 @@ void tcp_init_congestion_control(struct sock *sk) struct inet_connection_sock *icsk = inet_csk(sk); struct tcp_congestion_ops *ca; - if (icsk->icsk_ca_ops != &tcp_init_congestion_ops) - return; + /* if no choice made yet assign the current value set as default */ + if (icsk->icsk_ca_ops == &tcp_init_congestion_ops) { + rcu_read_lock(); + list_for_each_entry_rcu(ca, &tcp_cong_list, list) { + if (try_module_get(ca->owner)) { + icsk->icsk_ca_ops = ca; + break; + } - rcu_read_lock(); - list_for_each_entry_rcu(ca, &tcp_cong_list, list) { - if (try_module_get(ca->owner)) { - icsk->icsk_ca_ops = ca; - break; + /* fallback to next available */ } - + rcu_read_unlock(); } - rcu_read_unlock(); if (icsk->icsk_ca_ops->init) icsk->icsk_ca_ops->init(sk); @@ -236,6 +237,7 @@ int tcp_set_congestion_control(struct sock *sk, const char *name) rcu_read_lock(); ca = tcp_ca_find(name); + /* no change asking for existing value */ if (ca == icsk->icsk_ca_ops) goto out; @@ -261,7 +263,8 @@ int tcp_set_congestion_control(struct sock *sk, const char *name) else { tcp_cleanup_congestion_control(sk); icsk->icsk_ca_ops = ca; - if (icsk->icsk_ca_ops->init) + + if (sk->sk_state != TCP_CLOSE && icsk->icsk_ca_ops->init) icsk->icsk_ca_ops->init(sk); } out: diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index dc15113..3c24881 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -943,7 +943,8 @@ static void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp) if (tp->packets_out > tp->snd_cwnd_used) tp->snd_cwnd_used = tp->packets_out; - if ((s32)(tcp_time_stamp - tp->snd_cwnd_stamp) >= inet_csk(sk)->icsk_rto) + if (sysctl_tcp_slow_start_after_idle && + (s32)(tcp_time_stamp - tp->snd_cwnd_stamp) >= inet_csk(sk)->icsk_rto) tcp_cwnd_application_limited(sk); } } @@ -1607,6 +1608,9 @@ u32 __tcp_select_window(struct sock *sk) */ if (window <= free_space - mss || window > free_space) window = (free_space/mss)*mss; + else if (mss == full_space && + free_space > window + full_space/2) + window = free_space; } return window; diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c index 89cf59e..d419e15 100644 --- a/net/ipv4/xfrm4_mode_beet.c +++ b/net/ipv4/xfrm4_mode_beet.c @@ -42,10 +42,9 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb) skb->nh.raw = skb_push(skb, x->props.header_len + hdrlen); top_iph = skb->nh.iph; - hdrlen = iph->ihl * 4 - optlen; - skb->h.raw += hdrlen; + skb->h.raw += sizeof(*iph) - hdrlen; - memmove(top_iph, iph, hdrlen); + memmove(top_iph, iph, sizeof(*iph)); if (unlikely(optlen)) { struct ip_beet_phdr *ph; @@ -53,8 +52,10 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb) ph = (struct ip_beet_phdr *)skb->h.raw; ph->padlen = 4 - (optlen & 4); - ph->hdrlen = (optlen + ph->padlen + sizeof(*ph)) / 8; + ph->hdrlen = optlen / 8; ph->nexthdr = top_iph->protocol; + if (ph->padlen) + memset(ph + 1, IPOPT_NOP, ph->padlen); top_iph->protocol = IPPROTO_BEETPH; top_iph->ihl = sizeof(struct iphdr) / 4; @@ -77,29 +78,32 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb) protocol = iph->protocol; if (unlikely(iph->protocol == IPPROTO_BEETPH)) { - struct ip_beet_phdr *ph = (struct ip_beet_phdr*)(iph + 1); + struct ip_beet_phdr *ph; if (!pskb_may_pull(skb, sizeof(*ph))) goto out; + ph = (struct ip_beet_phdr *)(skb->h.ipiph + 1); - phlen = ph->hdrlen * 8; - optlen = phlen - ph->padlen - sizeof(*ph); + phlen = sizeof(*ph) + ph->padlen; + optlen = ph->hdrlen * 8 + (IPV4_BEET_PHMAXLEN - phlen); if (optlen < 0 || optlen & 3 || optlen > 250) goto out; - if (!pskb_may_pull(skb, phlen)) + if (!pskb_may_pull(skb, phlen + optlen)) goto out; + skb->len -= phlen + optlen; ph_nexthdr = ph->nexthdr; } - skb_push(skb, sizeof(*iph) - phlen + optlen); - memmove(skb->data, skb->nh.raw, sizeof(*iph)); - skb->nh.raw = skb->data; + skb->nh.raw = skb->data + (phlen - sizeof(*iph)); + memmove(skb->nh.raw, iph, sizeof(*iph)); + skb->h.raw = skb->data + (phlen + optlen); + skb->data = skb->h.raw; iph = skb->nh.iph; iph->ihl = (sizeof(*iph) + optlen) / 4; - iph->tot_len = htons(skb->len); + iph->tot_len = htons(skb->len + iph->ihl * 4); iph->daddr = x->sel.daddr.a4; iph->saddr = x->sel.saddr.a4; if (ph_nexthdr) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index a7fee6b..452a82c 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -172,6 +172,7 @@ struct ipv6_devconf ipv6_devconf __read_mostly = { #endif #endif .proxy_ndp = 0, + .accept_source_route = 0, /* we do not accept RH0 by default. */ }; static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { @@ -203,6 +204,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { #endif #endif .proxy_ndp = 0, + .accept_source_route = 0, /* we do not accept RH0 by default. */ }; /* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */ @@ -342,6 +344,9 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) } #endif + if (netif_running(dev) && netif_carrier_ok(dev)) + ndev->if_flags |= IF_READY; + ipv6_mc_init_dev(ndev); ndev->tstamp = jiffies; #ifdef CONFIG_SYSCTL @@ -804,7 +809,7 @@ struct ipv6_saddr_score { #define IPV6_SADDR_SCORE_LABEL 0x0020 #define IPV6_SADDR_SCORE_PRIVACY 0x0040 -static int inline ipv6_saddr_preferred(int type) +static inline int ipv6_saddr_preferred(int type) { if (type & (IPV6_ADDR_MAPPED|IPV6_ADDR_COMPATv4| IPV6_ADDR_LOOPBACK|IPV6_ADDR_RESERVED)) @@ -813,7 +818,7 @@ static int inline ipv6_saddr_preferred(int type) } /* static matching label */ -static int inline ipv6_saddr_label(const struct in6_addr *addr, int type) +static inline int ipv6_saddr_label(const struct in6_addr *addr, int type) { /* * prefix (longest match) label @@ -3318,7 +3323,7 @@ errout: rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err); } -static void inline ipv6_store_devconf(struct ipv6_devconf *cnf, +static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, __s32 *array, int bytes) { BUG_ON(bytes < (DEVCONF_MAX * 4)); @@ -3353,6 +3358,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf, #endif #endif array[DEVCONF_PROXY_NDP] = cnf->proxy_ndp; + array[DEVCONF_ACCEPT_SOURCE_ROUTE] = cnf->accept_source_route; } static inline size_t inet6_if_nlmsg_size(void) @@ -3881,6 +3887,14 @@ static struct addrconf_sysctl_table .proc_handler = &proc_dointvec, }, { + .ctl_name = NET_IPV6_ACCEPT_SOURCE_ROUTE, + .procname = "accept_source_route", + .data = &ipv6_devconf.accept_source_route, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { .ctl_name = 0, /* sentinel */ } }, diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 28e0c65..fb39604 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -362,10 +362,27 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp) struct inet6_skb_parm *opt = IP6CB(skb); struct in6_addr *addr = NULL; struct in6_addr daddr; + struct inet6_dev *idev; int n, i; - struct ipv6_rt_hdr *hdr; struct rt0_hdr *rthdr; + int accept_source_route = ipv6_devconf.accept_source_route; + + if (accept_source_route < 0 || + ((idev = in6_dev_get(skb->dev)) == NULL)) { + kfree_skb(skb); + return -1; + } + if (idev->cnf.accept_source_route < 0) { + in6_dev_put(idev); + kfree_skb(skb); + return -1; + } + + if (accept_source_route > idev->cnf.accept_source_route) + accept_source_route = idev->cnf.accept_source_route; + + in6_dev_put(idev); if (!pskb_may_pull(skb, (skb->h.raw-skb->data)+8) || !pskb_may_pull(skb, (skb->h.raw-skb->data)+((skb->h.raw[1]+1)<<3))) { @@ -377,6 +394,22 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp) hdr = (struct ipv6_rt_hdr *) skb->h.raw; + switch (hdr->type) { +#ifdef CONFIG_IPV6_MIP6 + break; +#endif + case IPV6_SRCRT_TYPE_0: + if (accept_source_route > 0) + break; + kfree_skb(skb); + return -1; + default: + IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), + IPSTATS_MIB_INHDRERRORS); + icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw); + return -1; + } + if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr) || skb->pkt_type != PACKET_HOST) { IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), @@ -434,11 +467,6 @@ looped_back: } break; #endif - default: - IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), - IPSTATS_MIB_INHDRERRORS); - icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw); - return -1; } /* diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 0862809..ea3035b 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -131,8 +131,6 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) static struct nla_policy fib6_rule_policy[FRA_MAX+1] __read_mostly = { FRA_GENERIC_POLICY, - [FRA_SRC] = { .len = sizeof(struct in6_addr) }, - [FRA_DST] = { .len = sizeof(struct in6_addr) }, }; static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb, @@ -142,9 +140,6 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb, int err = -EINVAL; struct fib6_rule *rule6 = (struct fib6_rule *) rule; - if (frh->src_len > 128 || frh->dst_len > 128) - goto errout; - if (rule->action == FR_ACT_TO_TBL) { if (rule->table == RT6_TABLE_UNSPEC) goto errout; @@ -155,11 +150,11 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb, } } - if (tb[FRA_SRC]) + if (frh->src_len) nla_memcpy(&rule6->src.addr, tb[FRA_SRC], sizeof(struct in6_addr)); - if (tb[FRA_DST]) + if (frh->dst_len) nla_memcpy(&rule6->dst.addr, tb[FRA_DST], sizeof(struct in6_addr)); @@ -186,11 +181,11 @@ static int fib6_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh, if (frh->tos && (rule6->tclass != frh->tos)) return 0; - if (tb[FRA_SRC] && + if (frh->src_len && nla_memcmp(tb[FRA_SRC], &rule6->src.addr, sizeof(struct in6_addr))) return 0; - if (tb[FRA_DST] && + if (frh->dst_len && nla_memcmp(tb[FRA_DST], &rule6->dst.addr, sizeof(struct in6_addr))) return 0; @@ -240,6 +235,7 @@ static size_t fib6_rule_nlmsg_payload(struct fib_rule *rule) static struct fib_rules_ops fib6_rules_ops = { .family = AF_INET6, .rule_size = sizeof(struct fib6_rule), + .addr_size = sizeof(struct in6_addr), .action = fib6_rule_action, .match = fib6_rule_match, .configure = fib6_rule_configure, diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index f4d7be7..268f476 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -658,6 +658,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, ins = &iter->u.dst.rt6_next; } + /* Reset round-robin state, if necessary */ + if (ins == &fn->leaf) + fn->rr_ptr = NULL; + /* * insert node */ @@ -1109,6 +1113,10 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, rt6_stats.fib_rt_entries--; rt6_stats.fib_discarded_routes++; + /* Reset round-robin state, if necessary */ + if (fn->rr_ptr == rt) + fn->rr_ptr = NULL; + /* Adjust walkers */ read_lock(&fib6_walker_lock); FOR_WALKERS(w) { diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 11bfc7c..61e7a6c 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -108,8 +108,10 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt /* pkt_len may be zero if Jumbo payload option is present */ if (pkt_len || hdr->nexthdr != NEXTHDR_HOP) { - if (pkt_len + sizeof(struct ipv6hdr) > skb->len) - goto truncated; + if (pkt_len + sizeof(struct ipv6hdr) > skb->len) { + IP6_INC_STATS_BH(idev, IPSTATS_MIB_INTRUNCATEDPKTS); + goto drop; + } if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr))) { IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS); goto drop; @@ -128,8 +130,6 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt rcu_read_unlock(); return NF_HOOK(PF_INET6,NF_IP6_PRE_ROUTING, skb, dev, NULL, ip6_rcv_finish); -truncated: - IP6_INC_STATS_BH(idev, IPSTATS_MIB_INTRUNCATEDPKTS); err: IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS); drop: diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 306d5d8..203e069 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -687,9 +687,9 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, int err; /* Rough check on arithmetic overflow, - better check is made in ip6_build_xmit + better check is made in ip6_append_data(). */ - if (len < 0) + if (len > INT_MAX) return -EMSGSIZE; /* Mirror BSD error message compatibility */ diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 0e1f4b2..aebb4e2 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -308,27 +308,18 @@ static inline void rt6_probe(struct rt6_info *rt) /* * Default Router Selection (RFC 2461 6.3.6) */ -static int inline rt6_check_dev(struct rt6_info *rt, int oif) +static inline int rt6_check_dev(struct rt6_info *rt, int oif) { struct net_device *dev = rt->rt6i_dev; - int ret = 0; - - if (!oif) - return 2; - if (dev->flags & IFF_LOOPBACK) { - if (!WARN_ON(rt->rt6i_idev == NULL) && - rt->rt6i_idev->dev->ifindex == oif) - ret = 1; - else - return 0; - } - if (dev->ifindex == oif) + if (!oif || dev->ifindex == oif) return 2; - - return ret; + if ((dev->flags & IFF_LOOPBACK) && + rt->rt6i_idev && rt->rt6i_idev->dev->ifindex == oif) + return 1; + return 0; } -static int inline rt6_check_neigh(struct rt6_info *rt) +static inline int rt6_check_neigh(struct rt6_info *rt) { struct neighbour *neigh = rt->rt6i_nexthop; int m = 0; @@ -363,55 +354,76 @@ static int rt6_score_route(struct rt6_info *rt, int oif, return m; } -static struct rt6_info *rt6_select(struct rt6_info **head, int oif, - int strict) +static struct rt6_info *find_match(struct rt6_info *rt, int oif, int strict, + int *mpri, struct rt6_info *match) { - struct rt6_info *match = NULL, *last = NULL; - struct rt6_info *rt, *rt0 = *head; - u32 metric; + int m; + + if (rt6_check_expired(rt)) + goto out; + + m = rt6_score_route(rt, oif, strict); + if (m < 0) + goto out; + + if (m > *mpri) { + if (strict & RT6_LOOKUP_F_REACHABLE) + rt6_probe(match); + *mpri = m; + match = rt; + } else if (strict & RT6_LOOKUP_F_REACHABLE) { + rt6_probe(rt); + } + +out: + return match; +} + +static struct rt6_info *find_rr_leaf(struct fib6_node *fn, + struct rt6_info *rr_head, + u32 metric, int oif, int strict) +{ + struct rt6_info *rt, *match; int mpri = -1; - RT6_TRACE("%s(head=%p(*head=%p), oif=%d)\n", - __FUNCTION__, head, head ? *head : NULL, oif); + match = NULL; + for (rt = rr_head; rt && rt->rt6i_metric == metric; + rt = rt->u.dst.rt6_next) + match = find_match(rt, oif, strict, &mpri, match); + for (rt = fn->leaf; rt && rt != rr_head && rt->rt6i_metric == metric; + rt = rt->u.dst.rt6_next) + match = find_match(rt, oif, strict, &mpri, match); - for (rt = rt0, metric = rt0->rt6i_metric; - rt && rt->rt6i_metric == metric && (!last || rt != rt0); - rt = rt->u.dst.rt6_next) { - int m; + return match; +} - if (rt6_check_expired(rt)) - continue; +static struct rt6_info *rt6_select(struct fib6_node *fn, int oif, int strict) +{ + struct rt6_info *match, *rt0; - last = rt; + RT6_TRACE("%s(fn->leaf=%p, oif=%d)\n", + __FUNCTION__, fn->leaf, oif); - m = rt6_score_route(rt, oif, strict); - if (m < 0) - continue; + rt0 = fn->rr_ptr; + if (!rt0) + fn->rr_ptr = rt0 = fn->leaf; - if (m > mpri) { - if (strict & RT6_LOOKUP_F_REACHABLE) - rt6_probe(match); - match = rt; - mpri = m; - } else if (strict & RT6_LOOKUP_F_REACHABLE) { - rt6_probe(rt); - } - } + match = find_rr_leaf(fn, rt0, rt0->rt6i_metric, oif, strict); if (!match && - (strict & RT6_LOOKUP_F_REACHABLE) && - last && last != rt0) { + (strict & RT6_LOOKUP_F_REACHABLE)) { + struct rt6_info *next = rt0->u.dst.rt6_next; + /* no entries matched; do round-robin */ - static DEFINE_SPINLOCK(lock); - spin_lock(&lock); - *head = rt0->u.dst.rt6_next; - rt0->u.dst.rt6_next = last->u.dst.rt6_next; - last->u.dst.rt6_next = rt0; - spin_unlock(&lock); + if (!next || next->rt6i_metric != rt0->rt6i_metric) + next = fn->leaf; + + if (next != rt0) + fn->rr_ptr = next; } - RT6_TRACE("%s() => %p, score=%d\n", - __FUNCTION__, match, mpri); + RT6_TRACE("%s() => %p\n", + __FUNCTION__, match); return (match ? match : &ip6_null_entry); } @@ -657,7 +669,7 @@ restart_2: fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src); restart: - rt = rt6_select(&fn->leaf, fl->iif, strict | reachable); + rt = rt6_select(fn, fl->iif, strict | reachable); BACKTRACK(&fl->fl6_src); if (rt == &ip6_null_entry || rt->rt6i_flags & RTF_CACHE) @@ -752,7 +764,7 @@ restart_2: fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src); restart: - rt = rt6_select(&fn->leaf, fl->oif, strict | reachable); + rt = rt6_select(fn, fl->oif, strict | reachable); BACKTRACK(&fl->fl6_src); if (rt == &ip6_null_entry || rt->rt6i_flags & RTF_CACHE) @@ -1754,13 +1766,22 @@ int ipv6_route_ioctl(unsigned int cmd, void __user *arg) * Drop the packet on the floor */ -static inline int ip6_pkt_drop(struct sk_buff *skb, int code) +static inline int ip6_pkt_drop(struct sk_buff *skb, int code, + int ipstats_mib_noroutes) { - int type = ipv6_addr_type(&skb->nh.ipv6h->daddr); - if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) - IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS); - - IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_OUTNOROUTES); + int type; + switch (ipstats_mib_noroutes) { + case IPSTATS_MIB_INNOROUTES: + type = ipv6_addr_type(&skb->nh.ipv6h->daddr); + if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) { + IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS); + break; + } + /* FALLTHROUGH */ + case IPSTATS_MIB_OUTNOROUTES: + IP6_INC_STATS(ip6_dst_idev(skb->dst), ipstats_mib_noroutes); + break; + } icmpv6_send(skb, ICMPV6_DEST_UNREACH, code, 0, skb->dev); kfree_skb(skb); return 0; @@ -1768,26 +1789,26 @@ static inline int ip6_pkt_drop(struct sk_buff *skb, int code) static int ip6_pkt_discard(struct sk_buff *skb) { - return ip6_pkt_drop(skb, ICMPV6_NOROUTE); + return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_INNOROUTES); } static int ip6_pkt_discard_out(struct sk_buff *skb) { skb->dev = skb->dst->dev; - return ip6_pkt_discard(skb); + return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_OUTNOROUTES); } #ifdef CONFIG_IPV6_MULTIPLE_TABLES static int ip6_pkt_prohibit(struct sk_buff *skb) { - return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED); + return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_INNOROUTES); } static int ip6_pkt_prohibit_out(struct sk_buff *skb) { skb->dev = skb->dst->dev; - return ip6_pkt_prohibit(skb); + return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES); } static int ip6_pkt_blk_hole(struct sk_buff *skb) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index f57a9ba..92f9992 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1453,6 +1453,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, First: no IPv4 options. */ newinet->opt = NULL; + newnp->ipv6_fl_list = NULL; /* Clone RX bits */ newnp->rxopt.all = np->rxopt.all; diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 0ad4719..f590db5 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -615,7 +615,7 @@ do_udp_sendmsg: return udp_sendmsg(iocb, sk, msg, len); /* Rough check on arithmetic overflow, - better check is made in ip6_build_xmit + better check is made in ip6_append_data(). */ if (len > INT_MAX - sizeof(struct udphdr)) return -EMSGSIZE; diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index ee4b84a..93c4223 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -58,7 +58,7 @@ static struct kmem_cache *xfrm6_tunnel_spi_kmem __read_mostly; static struct hlist_head xfrm6_tunnel_spi_byaddr[XFRM6_TUNNEL_SPI_BYADDR_HSIZE]; static struct hlist_head xfrm6_tunnel_spi_byspi[XFRM6_TUNNEL_SPI_BYSPI_HSIZE]; -static unsigned inline xfrm6_tunnel_spi_hash_byaddr(xfrm_address_t *addr) +static inline unsigned xfrm6_tunnel_spi_hash_byaddr(xfrm_address_t *addr) { unsigned h; @@ -70,7 +70,7 @@ static unsigned inline xfrm6_tunnel_spi_hash_byaddr(xfrm_address_t *addr) return h; } -static unsigned inline xfrm6_tunnel_spi_hash_byspi(u32 spi) +static inline unsigned xfrm6_tunnel_spi_hash_byspi(u32 spi) { return spi % XFRM6_TUNNEL_SPI_BYSPI_HSIZE; } diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index eabd683..0eb7d59 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -138,7 +138,6 @@ static void irda_disconnect_indication(void *instance, void *sap, sk->sk_shutdown |= SEND_SHUTDOWN; sk->sk_state_change(sk); - sock_orphan(sk); release_sock(sk); /* Close our TSAP. @@ -1446,7 +1445,7 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock, */ ret = sock_error(sk); if (ret) - break; + ; else if (sk->sk_shutdown & RCV_SHUTDOWN) ; else if (noblock) diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h index 873ae18..bc2e15c 100644 --- a/net/irda/irnet/irnet.h +++ b/net/irda/irnet/irnet.h @@ -419,7 +419,7 @@ typedef struct irnet_socket u32 raccm; /* to please pppd - dummy) */ unsigned int flags; /* PPP flags (compression, ...) */ unsigned int rbits; /* Unused receive flags ??? */ - + struct work_struct disconnect_work; /* Process context disconnection */ /* ------------------------ IrTTP part ------------------------ */ /* We create a pseudo "socket" over the IrDA tranport */ unsigned long ttp_open; /* Set when IrTTP is ready */ diff --git a/net/irda/irnet/irnet_irda.c b/net/irda/irnet/irnet_irda.c index c378e66..a4f1439 100644 --- a/net/irda/irnet/irnet_irda.c +++ b/net/irda/irnet/irnet_irda.c @@ -10,6 +10,27 @@ #include "irnet_irda.h" /* Private header */ +/* + * PPP disconnect work: we need to make sure we're in + * process context when calling ppp_unregister_channel(). + */ +static void irnet_ppp_disconnect(struct work_struct *work) +{ + irnet_socket * self = + container_of(work, irnet_socket, disconnect_work); + + if (self == NULL) + return; + /* + * If we were connected, cleanup & close the PPP + * channel, which will kill pppd (hangup) and the rest. + */ + if (self->ppp_open && !self->ttp_open && !self->ttp_connect) { + ppp_unregister_channel(&self->chan); + self->ppp_open = 0; + } +} + /************************* CONTROL CHANNEL *************************/ /* * When ppp is not active, /dev/irnet act as a control channel. @@ -499,6 +520,8 @@ irda_irnet_create(irnet_socket * self) #endif /* DISCOVERY_NOMASK */ self->tx_flow = FLOW_START; /* Flow control from IrTTP */ + INIT_WORK(&self->disconnect_work, irnet_ppp_disconnect); + DEXIT(IRDA_SOCK_TRACE, "\n"); return(0); } @@ -1134,15 +1157,8 @@ irnet_disconnect_indication(void * instance, { if(test_open) { -#ifdef MISSING_PPP_API - /* ppp_unregister_channel() wants a user context, which we - * are guaranteed to NOT have here. What are we supposed - * to do here ? Jean II */ - /* If we were connected, cleanup & close the PPP channel, - * which will kill pppd (hangup) and the rest */ - ppp_unregister_channel(&self->chan); - self->ppp_open = 0; -#endif + /* ppp_unregister_channel() wants a user context. */ + schedule_work(&self->disconnect_work); } else { diff --git a/net/irda/irttp.c b/net/irda/irttp.c index a7486b3..da3f2bc 100644 --- a/net/irda/irttp.c +++ b/net/irda/irttp.c @@ -1455,6 +1455,7 @@ struct tsap_cb *irttp_dup(struct tsap_cb *orig, void *instance) /* Not everything should be copied */ new->notify.instance = instance; + spin_lock_init(&new->lock); init_timer(&new->todo_timer); skb_queue_head_init(&new->rx_queue); diff --git a/net/key/af_key.c b/net/key/af_key.c index a4e7e2d..3450193 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -630,6 +630,35 @@ pfkey_sockaddr_size(sa_family_t family) /* NOTREACHED */ } +static inline int pfkey_mode_from_xfrm(int mode) +{ + switch(mode) { + case XFRM_MODE_TRANSPORT: + return IPSEC_MODE_TRANSPORT; + case XFRM_MODE_TUNNEL: + return IPSEC_MODE_TUNNEL; + case XFRM_MODE_BEET: + return IPSEC_MODE_BEET; + default: + return -1; + } +} + +static inline int pfkey_mode_to_xfrm(int mode) +{ + switch(mode) { + case IPSEC_MODE_ANY: /*XXX*/ + case IPSEC_MODE_TRANSPORT: + return XFRM_MODE_TRANSPORT; + case IPSEC_MODE_TUNNEL: + return XFRM_MODE_TUNNEL; + case IPSEC_MODE_BEET: + return XFRM_MODE_BEET; + default: + return -1; + } +} + static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys, int hsc) { struct sk_buff *skb; @@ -651,6 +680,7 @@ static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys, int encrypt_key_size = 0; int sockaddr_size; struct xfrm_encap_tmpl *natt = NULL; + int mode; /* address family check */ sockaddr_size = pfkey_sockaddr_size(x->props.family); @@ -928,7 +958,11 @@ static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys, sa2 = (struct sadb_x_sa2 *) skb_put(skb, sizeof(struct sadb_x_sa2)); sa2->sadb_x_sa2_len = sizeof(struct sadb_x_sa2)/sizeof(uint64_t); sa2->sadb_x_sa2_exttype = SADB_X_EXT_SA2; - sa2->sadb_x_sa2_mode = x->props.mode + 1; + if ((mode = pfkey_mode_from_xfrm(x->props.mode)) < 0) { + kfree_skb(skb); + return ERR_PTR(-EINVAL); + } + sa2->sadb_x_sa2_mode = mode; sa2->sadb_x_sa2_reserved1 = 0; sa2->sadb_x_sa2_reserved2 = 0; sa2->sadb_x_sa2_sequence = 0; @@ -1155,9 +1189,12 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct sadb_msg *hdr, if (ext_hdrs[SADB_X_EXT_SA2-1]) { struct sadb_x_sa2 *sa2 = (void*)ext_hdrs[SADB_X_EXT_SA2-1]; - x->props.mode = sa2->sadb_x_sa2_mode; - if (x->props.mode) - x->props.mode--; + int mode = pfkey_mode_to_xfrm(sa2->sadb_x_sa2_mode); + if (mode < 0) { + err = -EINVAL; + goto out; + } + x->props.mode = mode; x->props.reqid = sa2->sadb_x_sa2_reqid; } @@ -1218,7 +1255,7 @@ static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h struct sadb_address *saddr, *daddr; struct sadb_msg *out_hdr; struct xfrm_state *x = NULL; - u8 mode; + int mode; u32 reqid; u8 proto; unsigned short family; @@ -1233,7 +1270,9 @@ static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h return -EINVAL; if ((sa2 = ext_hdrs[SADB_X_EXT_SA2-1]) != NULL) { - mode = sa2->sadb_x_sa2_mode - 1; + mode = pfkey_mode_to_xfrm(sa2->sadb_x_sa2_mode); + if (mode < 0) + return -EINVAL; reqid = sa2->sadb_x_sa2_reqid; } else { mode = 0; @@ -1756,6 +1795,7 @@ parse_ipsecrequest(struct xfrm_policy *xp, struct sadb_x_ipsecrequest *rq) #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) struct sockaddr_in6 *sin6; #endif + int mode; if (xp->xfrm_nr >= XFRM_MAX_DEPTH) return -ELOOP; @@ -1764,7 +1804,9 @@ parse_ipsecrequest(struct xfrm_policy *xp, struct sadb_x_ipsecrequest *rq) return -EINVAL; t->id.proto = rq->sadb_x_ipsecrequest_proto; /* XXX check proto */ - t->mode = rq->sadb_x_ipsecrequest_mode-1; + if ((mode = pfkey_mode_to_xfrm(rq->sadb_x_ipsecrequest_mode)) < 0) + return -EINVAL; + t->mode = mode; if (rq->sadb_x_ipsecrequest_level == IPSEC_LEVEL_USE) t->optional = 1; else if (rq->sadb_x_ipsecrequest_level == IPSEC_LEVEL_UNIQUE) { @@ -1877,7 +1919,7 @@ static struct sk_buff * pfkey_xfrm_policy2msg_prep(struct xfrm_policy *xp) return skb; } -static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, int dir) +static int pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, int dir) { struct sadb_msg *hdr; struct sadb_address *addr; @@ -2014,6 +2056,7 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i struct sadb_x_ipsecrequest *rq; struct xfrm_tmpl *t = xp->xfrm_vec + i; int req_size; + int mode; req_size = sizeof(struct sadb_x_ipsecrequest); if (t->mode == XFRM_MODE_TUNNEL) @@ -2027,7 +2070,9 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i memset(rq, 0, sizeof(*rq)); rq->sadb_x_ipsecrequest_len = req_size; rq->sadb_x_ipsecrequest_proto = t->id.proto; - rq->sadb_x_ipsecrequest_mode = t->mode+1; + if ((mode = pfkey_mode_from_xfrm(t->mode)) < 0) + return -EINVAL; + rq->sadb_x_ipsecrequest_mode = mode; rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_REQUIRE; if (t->reqid) rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_UNIQUE; @@ -2089,6 +2134,8 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i hdr->sadb_msg_len = size / sizeof(uint64_t); hdr->sadb_msg_reserved = atomic_read(&xp->refcnt); + + return 0; } static int key_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c) @@ -2102,7 +2149,9 @@ static int key_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c err = PTR_ERR(out_skb); goto out; } - pfkey_xfrm_policy2msg(out_skb, xp, dir); + err = pfkey_xfrm_policy2msg(out_skb, xp, dir); + if (err < 0) + return err; out_hdr = (struct sadb_msg *) out_skb->data; out_hdr->sadb_msg_version = PF_KEY_V2; @@ -2327,7 +2376,9 @@ static int key_pol_get_resp(struct sock *sk, struct xfrm_policy *xp, struct sadb err = PTR_ERR(out_skb); goto out; } - pfkey_xfrm_policy2msg(out_skb, xp, dir); + err = pfkey_xfrm_policy2msg(out_skb, xp, dir); + if (err < 0) + goto out; out_hdr = (struct sadb_msg *) out_skb->data; out_hdr->sadb_msg_version = hdr->sadb_msg_version; @@ -2409,6 +2460,7 @@ static int ipsecrequests_to_migrate(struct sadb_x_ipsecrequest *rq1, int len, { int err; struct sadb_x_ipsecrequest *rq2; + int mode; if (len <= sizeof(struct sadb_x_ipsecrequest) || len < rq1->sadb_x_ipsecrequest_len) @@ -2439,7 +2491,9 @@ static int ipsecrequests_to_migrate(struct sadb_x_ipsecrequest *rq1, int len, return -EINVAL; m->proto = rq1->sadb_x_ipsecrequest_proto; - m->mode = rq1->sadb_x_ipsecrequest_mode - 1; + if ((mode = pfkey_mode_to_xfrm(rq1->sadb_x_ipsecrequest_mode)) < 0) + return -EINVAL; + m->mode = mode; m->reqid = rq1->sadb_x_ipsecrequest_reqid; return ((int)(rq1->sadb_x_ipsecrequest_len + @@ -2579,12 +2633,15 @@ static int dump_sp(struct xfrm_policy *xp, int dir, int count, void *ptr) struct pfkey_dump_data *data = ptr; struct sk_buff *out_skb; struct sadb_msg *out_hdr; + int err; out_skb = pfkey_xfrm_policy2msg_prep(xp); if (IS_ERR(out_skb)) return PTR_ERR(out_skb); - pfkey_xfrm_policy2msg(out_skb, xp, dir); + err = pfkey_xfrm_policy2msg(out_skb, xp, dir); + if (err < 0) + return err; out_hdr = (struct sadb_msg *) out_skb->data; out_hdr->sadb_msg_version = data->hdr->sadb_msg_version; @@ -3513,7 +3570,10 @@ static int pfkey_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type, for (i = 0, mp = m; i < num_bundles; i++, mp++) { /* old ipsecrequest */ - if (set_ipsecrequest(skb, mp->proto, mp->mode + 1, + int mode = pfkey_mode_from_xfrm(mp->mode); + if (mode < 0) + return -EINVAL; + if (set_ipsecrequest(skb, mp->proto, mode, (mp->reqid ? IPSEC_LEVEL_UNIQUE : IPSEC_LEVEL_REQUIRE), mp->reqid, mp->old_family, &mp->old_saddr, &mp->old_daddr) < 0) { @@ -3521,7 +3581,7 @@ static int pfkey_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type, } /* new ipsecrequest */ - if (set_ipsecrequest(skb, mp->proto, mp->mode + 1, + if (set_ipsecrequest(skb, mp->proto, mode, (mp->reqid ? IPSEC_LEVEL_UNIQUE : IPSEC_LEVEL_REQUIRE), mp->reqid, mp->new_family, &mp->new_saddr, &mp->new_daddr) < 0) { diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 253fce3..54698af 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -275,6 +275,7 @@ config NF_CT_NETLINK tristate 'Connection tracking netlink interface (EXPERIMENTAL)' depends on EXPERIMENTAL && NF_CONNTRACK && NETFILTER_NETLINK depends on NF_CONNTRACK!=y || NETFILTER_NETLINK!=m + depends on NF_NAT=n || NF_NAT help This option enables support for a netlink-based userspace interface diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index e73d8f5..c48b0f49 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -443,6 +443,7 @@ static int netlink_release(struct socket *sock) return 0; netlink_remove(sk); + sock_orphan(sk); nlk = nlk_sk(sk); spin_lock(&nlk->cb_lock); @@ -457,7 +458,6 @@ static int netlink_release(struct socket *sock) /* OK. Socket is unlinked, and, therefore, no new packets will arrive */ - sock_orphan(sk); sock->sk = NULL; wake_up_interruptible_all(&nlk->wait); @@ -1412,9 +1412,9 @@ int netlink_dump_start(struct sock *ssk, struct sk_buff *skb, return -ECONNREFUSED; } nlk = nlk_sk(sk); - /* A dump is in progress... */ + /* A dump or destruction is in progress... */ spin_lock(&nlk->cb_lock); - if (nlk->cb) { + if (nlk->cb || sock_flag(sk, SOCK_DEAD)) { spin_unlock(&nlk->cb_lock); netlink_destroy_callback(cb); sock_put(sk); diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 8c34f1c..f92d531 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -700,23 +700,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le unsigned char cause, diagnostic; struct net_device *dev; ax25_uid_assoc *user; - int n; - - if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { - sock->state = SS_CONNECTED; - return 0; /* Connect completed during a ERESTARTSYS event */ - } - - if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { - sock->state = SS_UNCONNECTED; - return -ECONNREFUSED; - } - - if (sk->sk_state == TCP_ESTABLISHED) - return -EISCONN; /* No reconnect on a seqpacket socket */ - - sk->sk_state = TCP_CLOSE; - sock->state = SS_UNCONNECTED; + int n, err = 0; if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) return -EINVAL; @@ -734,24 +718,53 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le if ((rose->source_ndigis + addr->srose_ndigis) > ROSE_MAX_DIGIS) return -EINVAL; + lock_sock(sk); + + if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { + /* Connect completed during a ERESTARTSYS event */ + sock->state = SS_CONNECTED; + goto out_release; + } + + if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { + sock->state = SS_UNCONNECTED; + err = -ECONNREFUSED; + goto out_release; + } + + if (sk->sk_state == TCP_ESTABLISHED) { + /* No reconnect on a seqpacket socket */ + err = -EISCONN; + goto out_release; + } + + sk->sk_state = TCP_CLOSE; + sock->state = SS_UNCONNECTED; + rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, &diagnostic); if (!rose->neighbour) return -ENETUNREACH; rose->lci = rose_new_lci(rose->neighbour); - if (!rose->lci) - return -ENETUNREACH; + if (!rose->lci) { + err = -ENETUNREACH; + goto out_release; + } if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ sock_reset_flag(sk, SOCK_ZAPPED); - if ((dev = rose_dev_first()) == NULL) - return -ENETUNREACH; + if ((dev = rose_dev_first()) == NULL) { + err = -ENETUNREACH; + goto out_release; + } user = ax25_findbyuid(current->euid); - if (!user) - return -EINVAL; + if (!user) { + err = -EINVAL; + goto out_release; + } memcpy(&rose->source_addr, dev->dev_addr, ROSE_ADDR_LEN); rose->source_call = user->call; @@ -789,8 +802,10 @@ rose_try_next_neigh: rose_start_t1timer(sk); /* Now the loop */ - if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) - return -EINPROGRESS; + if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) { + err = -EINPROGRESS; + goto out_release; + } /* * A Connect Ack with Choke or timeout or failed routing will go to @@ -805,8 +820,10 @@ rose_try_next_neigh: set_current_state(TASK_INTERRUPTIBLE); if (sk->sk_state != TCP_SYN_SENT) break; + release_sock(sk); if (!signal_pending(tsk)) { schedule(); + lock_sock(sk); continue; } current->state = TASK_RUNNING; @@ -822,14 +839,19 @@ rose_try_next_neigh: rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, &diagnostic); if (rose->neighbour) goto rose_try_next_neigh; - /* No more neighbour */ + + /* No more neighbours */ sock->state = SS_UNCONNECTED; - return sock_error(sk); /* Always set at this point */ + err = sock_error(sk); /* Always set at this point */ + goto out_release; } sock->state = SS_CONNECTED; - return 0; +out_release: + release_sock(sk); + + return err; } static int rose_accept(struct socket *sock, struct socket *newsock, int flags) @@ -877,6 +899,8 @@ static int rose_accept(struct socket *sock, struct socket *newsock, int flags) lock_sock(sk); continue; } + current->state = TASK_RUNNING; + remove_wait_queue(sk->sk_sleep, &wait); return -ERESTARTSYS; } current->state = TASK_RUNNING; diff --git a/net/sched/Makefile b/net/sched/Makefile index ff2d6e5..020767a 100644 --- a/net/sched/Makefile +++ b/net/sched/Makefile @@ -17,7 +17,6 @@ obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o -obj-$(CONFIG_NET_SCH_HPFQ) += sch_hpfq.o obj-$(CONFIG_NET_SCH_HFSC) += sch_hfsc.o obj-$(CONFIG_NET_SCH_RED) += sch_red.o obj-$(CONFIG_NET_SCH_GRED) += sch_gred.o diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 68f26cb..3e93683 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -198,7 +198,7 @@ bad_mirred: skb2->tc_verd = SET_TC_FROM(skb2->tc_verd, at); skb2->dev = dev; - skb2->input_dev = skb->dev; + skb2->iif = skb->dev->ifindex; dev_queue_xmit(skb2); spin_unlock(&m->tcf_lock); return m->tcf_action; diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c index fad08e5..4a91f08 100644 --- a/net/sched/cls_basic.c +++ b/net/sched/cls_basic.c @@ -81,6 +81,13 @@ static void basic_put(struct tcf_proto *tp, unsigned long f) static int basic_init(struct tcf_proto *tp) { + struct basic_head *head; + + head = kzalloc(sizeof(*head), GFP_KERNEL); + if (head == NULL) + return -ENOBUFS; + INIT_LIST_HEAD(&head->flist); + tp->root = head; return 0; } @@ -102,6 +109,7 @@ static void basic_destroy(struct tcf_proto *tp) list_del(&f->link); basic_delete_filter(tp, f); } + kfree(head); } static int basic_delete(struct tcf_proto *tp, unsigned long arg) @@ -176,15 +184,6 @@ static int basic_change(struct tcf_proto *tp, unsigned long base, u32 handle, } err = -ENOBUFS; - if (head == NULL) { - head = kzalloc(sizeof(*head), GFP_KERNEL); - if (head == NULL) - goto errout; - - INIT_LIST_HEAD(&head->flist); - tp->root = head; - } - f = kzalloc(sizeof(*f), GFP_KERNEL); if (f == NULL) goto errout; diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c index e85df07..abc47cc 100644 --- a/net/sched/cls_route.c +++ b/net/sched/cls_route.c @@ -93,7 +93,7 @@ void route4_reset_fastmap(struct net_device *dev, struct route4_head *head, u32 spin_unlock_bh(&dev->queue_lock); } -static void __inline__ +static inline void route4_set_fastmap(struct route4_head *head, u32 id, int iif, struct route4_filter *f) { diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c index 040e2d2..7563fdc 100644 --- a/net/sched/cls_tcindex.c +++ b/net/sched/cls_tcindex.c @@ -245,9 +245,9 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle, } if (tb[TCA_TCINDEX_SHIFT-1]) { - if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT-1]) < sizeof(u16)) + if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT-1]) < sizeof(int)) goto errout; - cp.shift = *(u16 *) RTA_DATA(tb[TCA_TCINDEX_SHIFT-1]); + cp.shift = *(int *) RTA_DATA(tb[TCA_TCINDEX_SHIFT-1]); } err = -EBUSY; diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 396deb7..407c6fb 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -1184,10 +1184,12 @@ hfsc_delete_class(struct Qdisc *sch, unsigned long arg) sch_tree_lock(sch); - list_del(&cl->hlist); list_del(&cl->siblings); hfsc_adjust_levels(cl->cl_parent); + hfsc_purge_queue(sch, cl); + list_del(&cl->hlist); + if (--cl->refcnt == 0) hfsc_destroy_class(sch, cl); diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 97cbb9a..3c3294d 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1380,15 +1380,15 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg) sch_tree_lock(sch); - /* delete from hash and active; remainder in destroy_class */ - hlist_del_init(&cl->hlist); - if (!cl->level) { qlen = cl->un.leaf.q->q.qlen; qdisc_reset(cl->un.leaf.q); qdisc_tree_decrease_qlen(cl->un.leaf.q, qlen); } + /* delete from hash and active; remainder in destroy_class */ + hlist_del_init(&cl->hlist); + if (cl->prio_activity) htb_deactivate(q, cl); diff --git a/net/sctp/associola.c b/net/sctp/associola.c index fa82b73..78d2ddb 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -1046,6 +1046,9 @@ void sctp_assoc_update(struct sctp_association *asoc, trans = list_entry(pos, struct sctp_transport, transports); if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr)) sctp_assoc_del_peer(asoc, &trans->ipaddr); + + if (asoc->state >= SCTP_STATE_ESTABLISHED) + sctp_transport_reset(trans); } /* If the case is A (association restart), use @@ -1063,6 +1066,18 @@ void sctp_assoc_update(struct sctp_association *asoc, */ sctp_ssnmap_clear(asoc->ssnmap); + /* Flush the ULP reassembly and ordered queue. + * Any data there will now be stale and will + * cause problems. + */ + sctp_ulpq_flush(&asoc->ulpq); + + /* reset the overall association error count so + * that the restarted association doesn't get torn + * down on the next retransmission timer. + */ + asoc->overall_error_count = 0; + } else { /* Add any peer addresses from the new association. */ list_for_each(pos, &new->peer.transport_addr_list) { diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 70c39ea..e9097cf 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4342,8 +4342,24 @@ sctp_disposition_t sctp_sf_do_prm_requestheartbeat( void *arg, sctp_cmd_seq_t *commands) { - return sctp_sf_heartbeat(ep, asoc, type, (struct sctp_transport *)arg, - commands); + if (SCTP_DISPOSITION_NOMEM == sctp_sf_heartbeat(ep, asoc, type, + (struct sctp_transport *)arg, commands)) + return SCTP_DISPOSITION_NOMEM; + + /* + * RFC 2960 (bis), section 8.3 + * + * D) Request an on-demand HEARTBEAT on a specific destination + * transport address of a given association. + * + * The endpoint should increment the respective error counter of + * the destination transport address each time a HEARTBEAT is sent + * to that address and not acknowledged within one RTO. + * + */ + sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_RESET, + SCTP_TRANSPORT(arg)); + return SCTP_DISPOSITION_CONSUME; } /* diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 536298c..a1d026f 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -627,6 +627,12 @@ int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt) retval = -EINVAL; goto err_bindx_rem; } + + if (!af->addr_valid(sa_addr, sp, NULL)) { + retval = -EADDRNOTAVAIL; + goto err_bindx_rem; + } + if (sa_addr->v4.sin_port != htons(bp->port)) { retval = -EINVAL; goto err_bindx_rem; @@ -5638,6 +5644,36 @@ void sctp_wait_for_close(struct sock *sk, long timeout) finish_wait(sk->sk_sleep, &wait); } +static void sctp_sock_rfree_frag(struct sk_buff *skb) +{ + struct sk_buff *frag; + + if (!skb->data_len) + goto done; + + /* Don't forget the fragments. */ + for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) + sctp_sock_rfree_frag(frag); + +done: + sctp_sock_rfree(skb); +} + +static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk) +{ + struct sk_buff *frag; + + if (!skb->data_len) + goto done; + + /* Don't forget the fragments. */ + for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) + sctp_skb_set_owner_r_frag(frag, sk); + +done: + sctp_skb_set_owner_r(skb, sk); +} + /* Populate the fields of the newsk from the oldsk and migrate the assoc * and its messages to the newsk. */ @@ -5692,10 +5728,10 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, sctp_skb_for_each(skb, &oldsk->sk_receive_queue, tmp) { event = sctp_skb2event(skb); if (event->asoc == assoc) { - sctp_sock_rfree(skb); + sctp_sock_rfree_frag(skb); __skb_unlink(skb, &oldsk->sk_receive_queue); __skb_queue_tail(&newsk->sk_receive_queue, skb); - sctp_skb_set_owner_r(skb, newsk); + sctp_skb_set_owner_r_frag(skb, newsk); } } @@ -5723,10 +5759,10 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, sctp_skb_for_each(skb, &oldsp->pd_lobby, tmp) { event = sctp_skb2event(skb); if (event->asoc == assoc) { - sctp_sock_rfree(skb); + sctp_sock_rfree_frag(skb); __skb_unlink(skb, &oldsp->pd_lobby); __skb_queue_tail(queue, skb); - sctp_skb_set_owner_r(skb, newsk); + sctp_skb_set_owner_r_frag(skb, newsk); } } @@ -5738,6 +5774,16 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, } + sctp_skb_for_each(skb, &assoc->ulpq.reasm, tmp) { + sctp_sock_rfree_frag(skb); + sctp_skb_set_owner_r_frag(skb, newsk); + } + + sctp_skb_for_each(skb, &assoc->ulpq.lobby, tmp) { + sctp_sock_rfree_frag(skb); + sctp_skb_set_owner_r_frag(skb, newsk); + } + /* Set the type of socket to indicate that it is peeled off from the * original UDP-style socket or created with the accept() call on a * TCP-style socket.. diff --git a/net/sctp/transport.c b/net/sctp/transport.c index a596f53..4d8c2ab 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -526,3 +526,35 @@ unsigned long sctp_transport_timeout(struct sctp_transport *t) timeout += jiffies; return timeout; } + +/* Reset transport variables to their initial values */ +void sctp_transport_reset(struct sctp_transport *t) +{ + struct sctp_association *asoc = t->asoc; + + /* RFC 2960 (bis), Section 5.2.4 + * All the congestion control parameters (e.g., cwnd, ssthresh) + * related to this peer MUST be reset to their initial values + * (see Section 6.2.1) + */ + t->cwnd = min(4*asoc->pathmtu, max_t(__u32, 2*asoc->pathmtu, 4380)); + t->ssthresh = asoc->peer.i.a_rwnd; + t->rto = asoc->rto_initial; + t->rtt = 0; + t->srtt = 0; + t->rttvar = 0; + + /* Reset these additional varibles so that we have a clean + * slate. + */ + t->partial_bytes_acked = 0; + t->flight_size = 0; + t->error_count = 0; + t->rto_pending = 0; + + /* Initialize the state information for SFR-CACC */ + t->cacc.changeover_active = 0; + t->cacc.cycling_changeover = 0; + t->cacc.next_tsn_at_change = 0; + t->cacc.cacc_saw_newack = 0; +} diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c index f4759a9..b29e3e4 100644 --- a/net/sctp/ulpqueue.c +++ b/net/sctp/ulpqueue.c @@ -73,7 +73,7 @@ struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *ulpq, /* Flush the reassembly and ordering queues. */ -static void sctp_ulpq_flush(struct sctp_ulpq *ulpq) +void sctp_ulpq_flush(struct sctp_ulpq *ulpq) { struct sk_buff *skb; struct sctp_ulpevent *event; @@ -190,7 +190,14 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event) if (!sctp_sk(sk)->pd_mode) { queue = &sk->sk_receive_queue; } else if (ulpq->pd_mode) { - if (event->msg_flags & MSG_NOTIFICATION) + /* If the association is in partial delivery, we + * need to finish delivering the partially processed + * packet before passing any other data. This is + * because we don't truly support stream interleaving. + */ + if ((event->msg_flags & MSG_NOTIFICATION) || + (SCTP_DATA_NOT_FRAG == + (event->msg_flags & SCTP_DATA_FRAG_MASK))) queue = &sctp_sk(sk)->pd_lobby; else { clear_pd = event->msg_flags & MSG_EOR; diff --git a/net/socket.c b/net/socket.c index 9566e57..ea8f81a 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1381,7 +1381,7 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, err = sock_attach_fd(newsock, newfile); if (err < 0) - goto out_fd; + goto out_fd_simple; err = security_socket_accept(sock, newsock); if (err) @@ -1414,6 +1414,11 @@ out_put: fput_light(sock->file, fput_needed); out: return err; +out_fd_simple: + sock_release(newsock); + put_filp(newfile); + put_unused_fd(newfd); + goto out_put; out_fd: fput(newfile); put_unused_fd(newfd); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6d7221f..396cdbe 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -1046,6 +1046,8 @@ call_status(struct rpc_task *task) rpc_delay(task, 3*HZ); case -ETIMEDOUT: task->tk_action = call_timeout; + if (task->tk_client->cl_discrtry) + xprt_disconnect(task->tk_xprt); break; case -ECONNREFUSED: case -ENOTCONN: @@ -1169,6 +1171,8 @@ call_decode(struct rpc_task *task) out_retry: req->rq_received = req->rq_private_buf.len = 0; task->tk_status = 0; + if (task->tk_client->cl_discrtry) + xprt_disconnect(task->tk_xprt); } /* diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c index 9bae409..2bd23ea 100644 --- a/net/sunrpc/svcauth_unix.c +++ b/net/sunrpc/svcauth_unix.c @@ -383,7 +383,10 @@ void svcauth_unix_purge(void) static inline struct ip_map * ip_map_cached_get(struct svc_rqst *rqstp) { - struct ip_map *ipm = rqstp->rq_sock->sk_info_authunix; + struct ip_map *ipm; + struct svc_sock *svsk = rqstp->rq_sock; + spin_lock_bh(&svsk->sk_defer_lock); + ipm = svsk->sk_info_authunix; if (ipm != NULL) { if (!cache_valid(&ipm->h)) { /* @@ -391,12 +394,14 @@ ip_map_cached_get(struct svc_rqst *rqstp) * remembered, e.g. by a second mount from the * same IP address. */ - rqstp->rq_sock->sk_info_authunix = NULL; + svsk->sk_info_authunix = NULL; + spin_unlock_bh(&svsk->sk_defer_lock); cache_put(&ipm->h, &ip_map_cache); return NULL; } cache_get(&ipm->h); } + spin_unlock_bh(&svsk->sk_defer_lock); return ipm; } @@ -405,9 +410,15 @@ ip_map_cached_put(struct svc_rqst *rqstp, struct ip_map *ipm) { struct svc_sock *svsk = rqstp->rq_sock; - if (svsk->sk_sock->type == SOCK_STREAM && svsk->sk_info_authunix == NULL) - svsk->sk_info_authunix = ipm; /* newly cached, keep the reference */ - else + spin_lock_bh(&svsk->sk_defer_lock); + if (svsk->sk_sock->type == SOCK_STREAM && + svsk->sk_info_authunix == NULL) { + /* newly cached, keep the reference */ + svsk->sk_info_authunix = ipm; + ipm = NULL; + } + spin_unlock_bh(&svsk->sk_defer_lock); + if (ipm) cache_put(&ipm->h, &ip_map_cache); } diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index f6e1eb1..2772fee 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -452,6 +452,8 @@ union svc_pktinfo_u { struct in_pktinfo pkti; struct in6_pktinfo pkti6; }; +#define SVC_PKTINFO_SPACE \ + CMSG_SPACE(sizeof(union svc_pktinfo_u)) static void svc_set_cmsg_data(struct svc_rqst *rqstp, struct cmsghdr *cmh) { @@ -491,8 +493,11 @@ svc_sendto(struct svc_rqst *rqstp, struct xdr_buf *xdr) struct svc_sock *svsk = rqstp->rq_sock; struct socket *sock = svsk->sk_sock; int slen; - char buffer[CMSG_SPACE(sizeof(union svc_pktinfo_u))]; - struct cmsghdr *cmh = (struct cmsghdr *)buffer; + union { + struct cmsghdr hdr; + long all[SVC_PKTINFO_SPACE / sizeof(long)]; + } buffer; + struct cmsghdr *cmh = &buffer.hdr; int len = 0; int result; int size; @@ -745,8 +750,11 @@ svc_udp_recvfrom(struct svc_rqst *rqstp) struct svc_sock *svsk = rqstp->rq_sock; struct svc_serv *serv = svsk->sk_server; struct sk_buff *skb; - char buffer[CMSG_SPACE(sizeof(union svc_pktinfo_u))]; - struct cmsghdr *cmh = (struct cmsghdr *)buffer; + union { + struct cmsghdr hdr; + long all[SVC_PKTINFO_SPACE / sizeof(long)]; + } buffer; + struct cmsghdr *cmh = &buffer.hdr; int err, len; struct msghdr msg = { .msg_name = svc_addr(rqstp), @@ -779,8 +787,8 @@ svc_udp_recvfrom(struct svc_rqst *rqstp) } clear_bit(SK_DATA, &svsk->sk_flags); - while ((err == kernel_recvmsg(svsk->sk_sock, &msg, NULL, - 0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 || + while ((err = kernel_recvmsg(svsk->sk_sock, &msg, NULL, + 0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 || (skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err)) == NULL) { if (err == -EAGAIN) { svc_sock_received(svsk); diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index ee6ffa0..456a145 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -735,16 +735,6 @@ void xprt_transmit(struct rpc_task *task) xprt_reset_majortimeo(req); /* Turn off autodisconnect */ del_singleshot_timer_sync(&xprt->timer); - } else { - /* If all request bytes have been sent, - * then we must be retransmitting this one */ - if (!req->rq_bytes_sent) { - if (task->tk_client->cl_discrtry) { - xprt_disconnect(xprt); - task->tk_status = -ENOTCONN; - return; - } - } } } else if (!req->rq_bytes_sent) return; diff --git a/net/wanrouter/af_wanpipe.c b/net/wanrouter/af_wanpipe.c deleted file mode 100644 index 41d7e32..0000000 --- a/net/wanrouter/af_wanpipe.c +++ /dev/null @@ -1,2600 +0,0 @@ -/***************************************************************************** -* af_wanpipe.c WANPIPE(tm) Secure Socket Layer. -* -* Author: Nenad Corbic <ncorbic@sangoma.com> -* -* Copyright: (c) 2000 Sangoma Technologies Inc. -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version -* 2 of the License, or (at your option) any later version. -* ============================================================================ -* Due Credit: -* Wanpipe socket layer is based on Packet and -* the X25 socket layers. The above sockets were -* used for the specific use of Sangoma Technologies -* API programs. -* Packet socket Authors: Ross Biro, Fred N. van Kempen and -* Alan Cox. -* X25 socket Author: Jonathan Naylor. -* ============================================================================ -* Mar 15, 2002 Arnaldo C. Melo o Use wp_sk()->num, as it isnt anymore in sock -* Apr 25, 2000 Nenad Corbic o Added the ability to send zero length packets. -* Mar 13, 2000 Nenad Corbic o Added a tx buffer check via ioctl call. -* Mar 06, 2000 Nenad Corbic o Fixed the corrupt sock lcn problem. -* Server and client application can run -* simultaneously without conflicts. -* Feb 29, 2000 Nenad Corbic o Added support for PVC protocols, such as -* CHDLC, Frame Relay and HDLC API. -* Jan 17, 2000 Nenad Corbic o Initial version, based on AF_PACKET socket. -* X25API support only. -* -******************************************************************************/ - -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/capability.h> -#include <linux/fcntl.h> -#include <linux/socket.h> -#include <linux/in.h> -#include <linux/inet.h> -#include <linux/netdevice.h> -#include <linux/poll.h> -#include <linux/wireless.h> -#include <linux/kmod.h> -#include <net/ip.h> -#include <net/protocol.h> -#include <linux/skbuff.h> -#include <net/sock.h> -#include <linux/errno.h> -#include <linux/timer.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/if_wanpipe.h> -#include <linux/pkt_sched.h> -#include <linux/tcp_states.h> -#include <linux/if_wanpipe_common.h> - -#ifdef CONFIG_INET -#include <net/inet_common.h> -#endif - -#define SLOW_BACKOFF 0.1*HZ -#define FAST_BACKOFF 0.01*HZ - -//#define PRINT_DEBUG -#ifdef PRINT_DEBUG - #define DBG_PRINTK(format, a...) printk(format, ## a) -#else - #define DBG_PRINTK(format, a...) -#endif - - -/* SECURE SOCKET IMPLEMENTATION - * - * TRANSMIT: - * - * When the user sends a packet via send() system call - * the wanpipe_sendmsg() function is executed. - * - * Each packet is enqueud into sk->sk_write_queue transmit - * queue. When the packet is enqueued, a delayed transmit - * timer is triggerd which acts as a Bottom Half hander. - * - * wanpipe_delay_transmit() function (BH), dequeues packets - * from the sk->sk_write_queue transmit queue and sends it - * to the deriver via dev->hard_start_xmit(skb, dev) function. - * Note, this function is actual a function pointer of if_send() - * routine in the wanpipe driver. - * - * X25API GUARANTEED DELIVERY: - * - * In order to provide 100% guaranteed packet delivery, - * an atomic 'packet_sent' counter is implemented. Counter - * is incremented for each packet enqueued - * into sk->sk_write_queue. Counter is decremented each - * time wanpipe_delayed_transmit() function successfuly - * passes the packet to the driver. Before each send(), a poll - * routine checks the sock resources The maximum value of - * packet sent counter is 1, thus if one packet is queued, the - * application will block until that packet is passed to the - * driver. - * - * RECEIVE: - * - * Wanpipe device drivers call the socket bottom half - * function, wanpipe_rcv() to queue the incoming packets - * into an AF_WANPIPE socket queue. Based on wanpipe_rcv() - * return code, the driver knows whether the packet was - * successfully queued. If the socket queue is full, - * protocol flow control is used by the driver, if any, - * to slow down the traffic until the sock queue is free. - * - * Every time a packet arrives into a socket queue the - * socket wakes up processes which are waiting to receive - * data. - * - * If the socket queue is full, the driver sets a block - * bit which signals the socket to kick the wanpipe driver - * bottom half hander when the socket queue is partialy - * empty. wanpipe_recvmsg() function performs this action. - * - * In case of x25api, packets will never be dropped, since - * flow control is available. - * - * In case of streaming protocols like CHDLC, packets will - * be dropped but the statistics will be generated. - */ - - -/* The code below is used to test memory leaks. It prints out - * a message every time kmalloc and kfree system calls get executed. - * If the calls match there is no leak :) - */ - -/***********FOR DEBUGGING PURPOSES********************************************* -#define KMEM_SAFETYZONE 8 - -static void * dbg_kmalloc(unsigned int size, int prio, int line) { - void * v = kmalloc(size,prio); - printk(KERN_INFO "line %d kmalloc(%d,%d) = %p\n",line,size,prio,v); - return v; -} -static void dbg_kfree(void * v, int line) { - printk(KERN_INFO "line %d kfree(%p)\n",line,v); - kfree(v); -} - -#define kmalloc(x,y) dbg_kmalloc(x,y,__LINE__) -#define kfree(x) dbg_kfree(x,__LINE__) -******************************************************************************/ - - -/* List of all wanpipe sockets. */ -HLIST_HEAD(wanpipe_sklist); -static DEFINE_RWLOCK(wanpipe_sklist_lock); - -atomic_t wanpipe_socks_nr; -static unsigned long wanpipe_tx_critical; - -#if 0 -/* Private wanpipe socket structures. */ -struct wanpipe_opt -{ - void *mbox; /* Mail box */ - void *card; /* Card bouded to */ - struct net_device *dev; /* Bounded device */ - unsigned short lcn; /* Binded LCN */ - unsigned char svc; /* 0=pvc, 1=svc */ - unsigned char timer; /* flag for delayed transmit*/ - struct timer_list tx_timer; - unsigned poll_cnt; - unsigned char force; /* Used to force sock release */ - atomic_t packet_sent; -}; -#endif - -static int sk_count; -extern const struct proto_ops wanpipe_ops; -static unsigned long find_free_critical; - -static void wanpipe_unlink_driver(struct sock *sk); -static void wanpipe_link_driver(struct net_device *dev, struct sock *sk); -static void wanpipe_wakeup_driver(struct sock *sk); -static int execute_command(struct sock *, unsigned char, unsigned int); -static int check_dev(struct net_device *dev, sdla_t *card); -struct net_device *wanpipe_find_free_dev(sdla_t *card); -static void wanpipe_unlink_card (struct sock *); -static int wanpipe_link_card (struct sock *); -static struct sock *wanpipe_make_new(struct sock *); -static struct sock *wanpipe_alloc_socket(void); -static inline int get_atomic_device(struct net_device *dev); -static int wanpipe_exec_cmd(struct sock *, int, unsigned int); -static int get_ioctl_cmd (struct sock *, void *); -static int set_ioctl_cmd (struct sock *, void *); -static void release_device(struct net_device *dev); -static void wanpipe_kill_sock_timer (unsigned long data); -static void wanpipe_kill_sock_irq (struct sock *); -static void wanpipe_kill_sock_accept (struct sock *); -static int wanpipe_do_bind(struct sock *sk, struct net_device *dev, - int protocol); -struct sock * get_newsk_from_skb (struct sk_buff *); -static int wanpipe_debug (struct sock *, void *); -static void wanpipe_delayed_transmit (unsigned long data); -static void release_driver(struct sock *); -static void start_cleanup_timer (struct sock *); -static void check_write_queue(struct sock *); -static int check_driver_busy (struct sock *); - -/*============================================================ - * wanpipe_rcv - * - * Wanpipe socket bottom half handler. This function - * is called by the WANPIPE device drivers to queue a - * incoming packet into the socket receive queue. - * Once the packet is queued, all processes waiting to - * read are woken up. - * - * During socket bind, this function is bounded into - * WANPIPE driver private. - *===========================================================*/ - -static int wanpipe_rcv(struct sk_buff *skb, struct net_device *dev, - struct sock *sk) -{ - struct wan_sockaddr_ll *sll = (struct wan_sockaddr_ll*)skb->cb; - wanpipe_common_t *chan = dev->priv; - /* - * When we registered the protocol we saved the socket in the data - * field for just this event. - */ - - skb->dev = dev; - - sll->sll_family = AF_WANPIPE; - sll->sll_hatype = dev->type; - sll->sll_protocol = skb->protocol; - sll->sll_pkttype = skb->pkt_type; - sll->sll_ifindex = dev->ifindex; - sll->sll_halen = 0; - - if (dev->hard_header_parse) - sll->sll_halen = dev->hard_header_parse(skb, sll->sll_addr); - - /* - * WAN_PACKET_DATA : Data which should be passed up the receive queue. - * WAN_PACKET_ASYC : Asynchronous data like place call, which should - * be passed up the listening sock. - * WAN_PACKET_ERR : Asynchronous data like clear call or restart - * which should go into an error queue. - */ - switch (skb->pkt_type){ - - case WAN_PACKET_DATA: - if (sock_queue_rcv_skb(sk,skb)<0){ - return -ENOMEM; - } - break; - case WAN_PACKET_CMD: - sk->sk_state = chan->state; - /* Bug fix: update Mar6. - * Do not set the sock lcn number here, since - * cmd is not guaranteed to be executed on the - * board, thus Lcn could be wrong */ - sk->sk_data_ready(sk, skb->len); - kfree_skb(skb); - break; - case WAN_PACKET_ERR: - sk->sk_state = chan->state; - if (sock_queue_err_skb(sk,skb)<0){ - return -ENOMEM; - } - break; - default: - printk(KERN_INFO "wansock: BH Illegal Packet Type Dropping\n"); - kfree_skb(skb); - break; - } - -//?????????????????????? -// if (sk->sk_state == WANSOCK_DISCONNECTED){ -// if (sk->sk_zapped) { -// //printk(KERN_INFO "wansock: Disconnected, killing early\n"); -// wanpipe_unlink_driver(sk); -// sk->sk_bound_dev_if = 0; -// } -// } - - return 0; -} - -/*============================================================ - * wanpipe_listen_rcv - * - * Wanpipe LISTEN socket bottom half handler. This function - * is called by the WANPIPE device drivers to queue an - * incoming call into the socket listening queue. - * Once the packet is queued, the waiting accept() process - * is woken up. - * - * During socket bind, this function is bounded into - * WANPIPE driver private. - * - * IMPORTANT NOTE: - * The accept call() is waiting for an skb packet - * which contains a pointer to a device structure. - * - * When we do a bind to a device structre, we - * bind a newly created socket into "chan->sk". Thus, - * when accept receives the skb packet, it will know - * from which dev it came form, and in turn it will know - * the address of the new sock. - * - * NOTE: This function gets called from driver ISR. - *===========================================================*/ - -static int wanpipe_listen_rcv (struct sk_buff *skb, struct sock *sk) -{ - wanpipe_opt *wp = wp_sk(sk), *newwp; - struct wan_sockaddr_ll *sll = (struct wan_sockaddr_ll*)skb->cb; - struct sock *newsk; - struct net_device *dev; - sdla_t *card; - mbox_cmd_t *mbox_ptr; - wanpipe_common_t *chan; - - /* Find a free device, if none found, all svc's are busy - */ - - card = (sdla_t*)wp->card; - if (!card){ - printk(KERN_INFO "wansock: LISTEN ERROR, No Card\n"); - return -ENODEV; - } - - dev = wanpipe_find_free_dev(card); - if (!dev){ - printk(KERN_INFO "wansock: LISTEN ERROR, No Free Device\n"); - return -ENODEV; - } - - chan=dev->priv; - chan->state = WANSOCK_CONNECTING; - - /* Allocate a new sock, which accept will bind - * and pass up to the user - */ - if ((newsk = wanpipe_make_new(sk)) == NULL){ - release_device(dev); - return -ENOMEM; - } - - - /* Initialize the new sock structure - */ - newsk->sk_bound_dev_if = dev->ifindex; - newwp = wp_sk(newsk); - newwp->card = wp->card; - - /* Insert the sock into the main wanpipe - * sock list. - */ - atomic_inc(&wanpipe_socks_nr); - - /* Allocate and fill in the new Mail Box. Then - * bind the mail box to the sock. It will be - * used by the ioctl call to read call information - * and to execute commands. - */ - if ((mbox_ptr = kzalloc(sizeof(mbox_cmd_t), GFP_ATOMIC)) == NULL) { - wanpipe_kill_sock_irq (newsk); - release_device(dev); - return -ENOMEM; - } - memcpy(mbox_ptr,skb->data,skb->len); - - /* Register the lcn on which incoming call came - * from. Thus, if we have to clear it, we know - * which lcn to clear - */ - - newwp->lcn = mbox_ptr->cmd.lcn; - newwp->mbox = (void *)mbox_ptr; - - DBG_PRINTK(KERN_INFO "NEWSOCK : Device %s, bind to lcn %i\n", - dev->name,mbox_ptr->cmd.lcn); - - chan->lcn = mbox_ptr->cmd.lcn; - card->u.x.svc_to_dev_map[(chan->lcn%MAX_X25_LCN)] = dev; - - sock_reset_flag(newsk, SOCK_ZAPPED); - newwp->num = htons(X25_PROT); - - if (wanpipe_do_bind(newsk, dev, newwp->num)) { - wanpipe_kill_sock_irq (newsk); - release_device(dev); - return -EINVAL; - } - newsk->sk_state = WANSOCK_CONNECTING; - - - /* Fill in the standard sock address info */ - - sll->sll_family = AF_WANPIPE; - sll->sll_hatype = dev->type; - sll->sll_protocol = skb->protocol; - sll->sll_pkttype = skb->pkt_type; - sll->sll_ifindex = dev->ifindex; - sll->sll_halen = 0; - - skb->dev = dev; - sk->sk_ack_backlog++; - - /* We must do this manually, since the sock_queue_rcv_skb() - * function sets the skb->dev to NULL. However, we use - * the dev field in the accept function.*/ - if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= - (unsigned)sk->sk_rcvbuf) { - - wanpipe_unlink_driver(newsk); - wanpipe_kill_sock_irq (newsk); - --sk->sk_ack_backlog; - return -ENOMEM; - } - - skb_set_owner_r(skb, sk); - skb_queue_tail(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); - - return 0; -} - - - -/*============================================================ - * wanpipe_make_new - * - * Create a new sock, and allocate a wanpipe private - * structure to it. Also, copy the important data - * from the original sock to the new sock. - * - * This function is used by wanpipe_listen_rcv() listen - * bottom half handler. A copy of the listening sock - * is created using this function. - * - *===========================================================*/ - -static struct sock *wanpipe_make_new(struct sock *osk) -{ - struct sock *sk; - - if (osk->sk_type != SOCK_RAW) - return NULL; - - if ((sk = wanpipe_alloc_socket()) == NULL) - return NULL; - - sk->sk_type = osk->sk_type; - sk->sk_socket = osk->sk_socket; - sk->sk_priority = osk->sk_priority; - sk->sk_protocol = osk->sk_protocol; - wp_sk(sk)->num = wp_sk(osk)->num; - sk->sk_rcvbuf = osk->sk_rcvbuf; - sk->sk_sndbuf = osk->sk_sndbuf; - sk->sk_state = WANSOCK_CONNECTING; - sk->sk_sleep = osk->sk_sleep; - - if (sock_flag(osk, SOCK_DBG)) - sock_set_flag(sk, SOCK_DBG); - - return sk; -} - -/* - * FIXME: wanpipe_opt has to include a sock in its definition and stop using - * sk_protinfo, but this code is not even compilable now, so lets leave it for - * later. - */ -static struct proto wanpipe_proto = { - .name = "WANPIPE", - .owner = THIS_MODULE, - .obj_size = sizeof(struct sock), -}; - -/*============================================================ - * wanpipe_make_new - * - * Allocate memory for the a new sock, and sock - * private data. - * - * Increment the module use count. - * - * This function is used by wanpipe_create() and - * wanpipe_make_new() functions. - * - *===========================================================*/ - -static struct sock *wanpipe_alloc_socket(void) -{ - struct sock *sk; - struct wanpipe_opt *wan_opt; - - if ((sk = sk_alloc(PF_WANPIPE, GFP_ATOMIC, &wanpipe_proto, 1)) == NULL) - return NULL; - - if ((wan_opt = kzalloc(sizeof(struct wanpipe_opt), GFP_ATOMIC)) == NULL) { - sk_free(sk); - return NULL; - } - - wp_sk(sk) = wan_opt; - - /* Use timer to send data to the driver. This will act - * as a BH handler for sendmsg functions */ - init_timer(&wan_opt->tx_timer); - wan_opt->tx_timer.data = (unsigned long)sk; - wan_opt->tx_timer.function = wanpipe_delayed_transmit; - - sock_init_data(NULL, sk); - return sk; -} - - -/*============================================================ - * wanpipe_sendmsg - * - * This function implements a sendto() system call, - * for AF_WANPIPE socket family. - * During socket bind() sk->sk_bound_dev_if is initialized - * to a correct network device. This number is used - * to find a network device to which the packet should - * be passed to. - * - * Each packet is queued into sk->sk_write_queue and - * delayed transmit bottom half handler is marked for - * execution. - * - * A socket must be in WANSOCK_CONNECTED state before - * a packet is queued into sk->sk_write_queue. - *===========================================================*/ - -static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, int len) -{ - wanpipe_opt *wp; - struct sock *sk = sock->sk; - struct wan_sockaddr_ll *saddr=(struct wan_sockaddr_ll *)msg->msg_name; - struct sk_buff *skb; - struct net_device *dev; - unsigned short proto; - unsigned char *addr; - int ifindex, err, reserve = 0; - - - if (!sock_flag(sk, SOCK_ZAPPED)) - return -ENETDOWN; - - if (sk->sk_state != WANSOCK_CONNECTED) - return -ENOTCONN; - - if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT)) - return(-EINVAL); - - /* it was <=, now one can send - * zero length packets */ - if (len < sizeof(x25api_hdr_t)) - return -EINVAL; - - wp = wp_sk(sk); - - if (saddr == NULL) { - ifindex = sk->sk_bound_dev_if; - proto = wp->num; - addr = NULL; - - }else{ - if (msg->msg_namelen < sizeof(struct wan_sockaddr_ll)){ - return -EINVAL; - } - - ifindex = sk->sk_bound_dev_if; - proto = saddr->sll_protocol; - addr = saddr->sll_addr; - } - - dev = dev_get_by_index(ifindex); - if (dev == NULL){ - printk(KERN_INFO "wansock: Send failed, dev index: %i\n",ifindex); - return -ENXIO; - } - dev_put(dev); - - if (sock->type == SOCK_RAW) - reserve = dev->hard_header_len; - - if (len > dev->mtu+reserve){ - return -EMSGSIZE; - } - - skb = sock_alloc_send_skb(sk, len + LL_RESERVED_SPACE(dev), - msg->msg_flags & MSG_DONTWAIT, &err); - - if (skb==NULL){ - goto out_unlock; - } - - skb_reserve(skb, LL_RESERVED_SPACE(dev)); - skb->nh.raw = skb->data; - - /* Returns -EFAULT on error */ - err = memcpy_fromiovec(skb_put(skb,len), msg->msg_iov, len); - if (err){ - goto out_free; - } - - if (dev->hard_header) { - int res; - err = -EINVAL; - res = dev->hard_header(skb, dev, ntohs(proto), addr, NULL, len); - if (res<0){ - goto out_free; - } - } - - skb->protocol = proto; - skb->dev = dev; - skb->priority = sk->sk_priority; - skb->pkt_type = WAN_PACKET_DATA; - - err = -ENETDOWN; - if (!(dev->flags & IFF_UP)) - goto out_free; - - if (atomic_read(&sk->sk_wmem_alloc) + skb->truesize > - (unsigned int)sk->sk_sndbuf){ - kfree_skb(skb); - return -ENOBUFS; - } - - skb_queue_tail(&sk->sk_write_queue,skb); - atomic_inc(&wp->packet_sent); - - if (!(test_and_set_bit(0, &wp->timer))) - mod_timer(&wp->tx_timer, jiffies + 1); - - return(len); - -out_free: - kfree_skb(skb); -out_unlock: - return err; -} - -/*============================================================ - * wanpipe_delayed_tarnsmit - * - * Transmit bottom half handler. It dequeues packets - * from sk->sk_write_queue and passes them to the - * driver. If the driver is busy, the packet is - * re-enqueued. - * - * Packet Sent counter is decremented on successful - * transmission. - *===========================================================*/ - - -static void wanpipe_delayed_transmit (unsigned long data) -{ - struct sock *sk=(struct sock *)data; - struct sk_buff *skb; - wanpipe_opt *wp = wp_sk(sk); - struct net_device *dev = wp->dev; - sdla_t *card = (sdla_t*)wp->card; - - if (!card || !dev){ - clear_bit(0, &wp->timer); - DBG_PRINTK(KERN_INFO "wansock: Transmit delay, no dev or card\n"); - return; - } - - if (sk->sk_state != WANSOCK_CONNECTED || !sock_flag(sk, SOCK_ZAPPED)) { - clear_bit(0, &wp->timer); - DBG_PRINTK(KERN_INFO "wansock: Tx Timer, State not CONNECTED\n"); - return; - } - - /* If driver is executing command, we must offload - * the board by not sending data. Otherwise a - * pending command will never get a free buffer - * to execute */ - if (atomic_read(&card->u.x.command_busy)){ - wp->tx_timer.expires = jiffies + SLOW_BACKOFF; - add_timer(&wp->tx_timer); - DBG_PRINTK(KERN_INFO "wansock: Tx Timer, command bys BACKOFF\n"); - return; - } - - - if (test_and_set_bit(0,&wanpipe_tx_critical)){ - printk(KERN_INFO "WanSock: Tx timer critical %s\n",dev->name); - wp->tx_timer.expires = jiffies + SLOW_BACKOFF; - add_timer(&wp->tx_timer); - return; - } - - /* Check for a packet in the fifo and send */ - if ((skb = skb_dequeue(&sk->sk_write_queue)) != NULL){ - - if (dev->hard_start_xmit(skb, dev) != 0){ - - /* Driver failed to transmit, re-enqueue - * the packet and retry again later */ - skb_queue_head(&sk->sk_write_queue,skb); - clear_bit(0,&wanpipe_tx_critical); - return; - }else{ - - /* Packet Sent successful. Check for more packets - * if more packets, re-trigger the transmit routine - * other wise exit - */ - atomic_dec(&wp->packet_sent); - - if (skb_peek(&sk->sk_write_queue) == NULL) { - /* If there is nothing to send, kick - * the poll routine, which will trigger - * the application to send more data */ - sk->sk_data_ready(sk, 0); - clear_bit(0, &wp->timer); - }else{ - /* Reschedule as fast as possible */ - wp->tx_timer.expires = jiffies + 1; - add_timer(&wp->tx_timer); - } - } - } - clear_bit(0,&wanpipe_tx_critical); -} - -/*============================================================ - * execute_command - * - * Execute x25api commands. The atomic variable - * chan->command is used to indicate to the driver that - * command is pending for execution. The acutal command - * structure is placed into a sock mbox structure - * (wp_sk(sk)->mbox). - * - * The sock private structure, mbox is - * used as shared memory between sock and the driver. - * Driver uses the sock mbox to execute the command - * and return the result. - * - * For all command except PLACE CALL, the function - * waits for the result. PLACE CALL can be ether - * blocking or nonblocking. The user sets this option - * via ioctl call. - *===========================================================*/ - - -static int execute_command(struct sock *sk, unsigned char cmd, unsigned int flags) -{ - wanpipe_opt *wp = wp_sk(sk); - struct net_device *dev; - wanpipe_common_t *chan=NULL; - int err=0; - DECLARE_WAITQUEUE(wait, current); - - dev = dev_get_by_index(sk->sk_bound_dev_if); - if (dev == NULL){ - printk(KERN_INFO "wansock: Exec failed no dev %i\n", - sk->sk_bound_dev_if); - return -ENODEV; - } - dev_put(dev); - - if ((chan=dev->priv) == NULL){ - printk(KERN_INFO "wansock: Exec cmd failed no priv area\n"); - return -ENODEV; - } - - if (atomic_read(&chan->command)){ - printk(KERN_INFO "wansock: ERROR: Command already running %x, %s\n", - atomic_read(&chan->command),dev->name); - return -EINVAL; - } - - if (!wp->mbox) { - printk(KERN_INFO "wansock: In execute without MBOX\n"); - return -EINVAL; - } - - ((mbox_cmd_t*)wp->mbox)->cmd.command = cmd; - ((mbox_cmd_t*)wp->mbox)->cmd.lcn = wp->lcn; - ((mbox_cmd_t*)wp->mbox)->cmd.result = 0x7F; - - - if (flags & O_NONBLOCK){ - cmd |= 0x80; - atomic_set(&chan->command, cmd); - }else{ - atomic_set(&chan->command, cmd); - } - - add_wait_queue(sk->sk_sleep,&wait); - current->state = TASK_INTERRUPTIBLE; - for (;;){ - if (((mbox_cmd_t*)wp->mbox)->cmd.result != 0x7F) { - err = 0; - break; - } - if (signal_pending(current)) { - err = -ERESTARTSYS; - break; - } - schedule(); - } - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep,&wait); - - return err; -} - -/*============================================================ - * wanpipe_destroy_timer - * - * Used by wanpipe_release, to delay release of - * the socket. - *===========================================================*/ - -static void wanpipe_destroy_timer(unsigned long data) -{ - struct sock *sk=(struct sock *)data; - wanpipe_opt *wp = wp_sk(sk); - - if ((!atomic_read(&sk->sk_wmem_alloc) && - !atomic_read(&sk->sk_rmem_alloc)) || - (++wp->force == 5)) { - - if (atomic_read(&sk->sk_wmem_alloc) || - atomic_read(&sk->sk_rmem_alloc)) - printk(KERN_INFO "wansock: Warning, Packet Discarded due to sock shutdown!\n"); - - kfree(wp); - wp_sk(sk) = NULL; - - if (atomic_read(&sk->sk_refcnt) != 1) { - atomic_set(&sk->sk_refcnt, 1); - DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i ! :delay.\n", - atomic_read(&sk->sk_refcnt)); - } - sock_put(sk); - atomic_dec(&wanpipe_socks_nr); - return; - } - - sk->sk_timer.expires = jiffies + 5 * HZ; - add_timer(&sk->sk_timer); - printk(KERN_INFO "wansock: packet sk destroy delayed\n"); -} - -/*============================================================ - * wanpipe_unlink_driver - * - * When the socket is released, this function is - * used to remove links that bind the sock and the - * driver together. - *===========================================================*/ -static void wanpipe_unlink_driver (struct sock *sk) -{ - struct net_device *dev; - wanpipe_common_t *chan=NULL; - - sock_reset_flag(sk, SOCK_ZAPPED); - sk->sk_state = WANSOCK_DISCONNECTED; - wp_sk(sk)->dev = NULL; - - dev = dev_get_by_index(sk->sk_bound_dev_if); - if (!dev){ - printk(KERN_INFO "wansock: No dev on release\n"); - return; - } - dev_put(dev); - - if ((chan = dev->priv) == NULL){ - printk(KERN_INFO "wansock: No Priv Area on release\n"); - return; - } - - set_bit(0,&chan->common_critical); - chan->sk=NULL; - chan->func=NULL; - chan->mbox=NULL; - chan->tx_timer=NULL; - clear_bit(0,&chan->common_critical); - release_device(dev); - - return; -} - -/*============================================================ - * wanpipe_link_driver - * - * Upon successful bind(), sock is linked to a driver - * by binding in the wanpipe_rcv() bottom half handler - * to the driver function pointer, as well as sock and - * sock mailbox addresses. This way driver can pass - * data up the socket. - *===========================================================*/ - -static void wanpipe_link_driver(struct net_device *dev, struct sock *sk) -{ - wanpipe_opt *wp = wp_sk(sk); - wanpipe_common_t *chan = dev->priv; - if (!chan) - return; - set_bit(0,&chan->common_critical); - chan->sk=sk; - chan->func=wanpipe_rcv; - chan->mbox = wp->mbox; - chan->tx_timer = &wp->tx_timer; - wp->dev = dev; - sock_set_flag(sk, SOCK_ZAPPED); - clear_bit(0,&chan->common_critical); -} - - -/*============================================================ - * release_device - * - * During sock release, clear a critical bit, which - * marks the device a being taken. - *===========================================================*/ - - -static void release_device(struct net_device *dev) -{ - wanpipe_common_t *chan=dev->priv; - clear_bit(0,(void*)&chan->rw_bind); -} - -/*============================================================ - * wanpipe_release - * - * Close a PACKET socket. This is fairly simple. We - * immediately go to 'closed' state and remove our - * protocol entry in the device list. - *===========================================================*/ - -static int wanpipe_release(struct socket *sock) -{ - wanpipe_opt *wp; - struct sock *sk = sock->sk; - - if (!sk) - return 0; - - wp = wp_sk(sk); - check_write_queue(sk); - - /* Kill the tx timer, if we don't kill it now, the timer - * will run after we kill the sock. Timer code will - * try to access the sock which has been killed and cause - * kernel panic */ - - del_timer(&wp->tx_timer); - - /* - * Unhook packet receive handler. - */ - - if (wp->num == htons(X25_PROT) && - sk->sk_state != WANSOCK_DISCONNECTED && sock_flag(sk, SOCK_ZAPPED)) { - struct net_device *dev = dev_get_by_index(sk->sk_bound_dev_if); - wanpipe_common_t *chan; - if (dev){ - chan=dev->priv; - atomic_set(&chan->disconnect,1); - DBG_PRINTK(KERN_INFO "wansock: Sending Clear Indication %i\n", - sk->sk_state); - dev_put(dev); - } - } - - set_bit(1,&wanpipe_tx_critical); - write_lock(&wanpipe_sklist_lock); - sk_del_node_init(sk); - write_unlock(&wanpipe_sklist_lock); - clear_bit(1,&wanpipe_tx_critical); - - - - release_driver(sk); - - - /* - * Now the socket is dead. No more input will appear. - */ - - sk->sk_state_change(sk); /* It is useless. Just for sanity. */ - - sock->sk = NULL; - sk->sk_socket = NULL; - sock_set_flag(sk, SOCK_DEAD); - - /* Purge queues */ - skb_queue_purge(&sk->sk_receive_queue); - skb_queue_purge(&sk->sk_write_queue); - skb_queue_purge(&sk->sk_error_queue); - - if (atomic_read(&sk->sk_rmem_alloc) || - atomic_read(&sk->sk_wmem_alloc)) { - del_timer(&sk->sk_timer); - printk(KERN_INFO "wansock: Killing in Timer R %i , W %i\n", - atomic_read(&sk->sk_rmem_alloc), - atomic_read(&sk->sk_wmem_alloc)); - sk->sk_timer.data = (unsigned long)sk; - sk->sk_timer.expires = jiffies + HZ; - sk->sk_timer.function = wanpipe_destroy_timer; - add_timer(&sk->sk_timer); - return 0; - } - - kfree(wp); - wp_sk(sk) = NULL; - - if (atomic_read(&sk->sk_refcnt) != 1) { - DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i !:release.\n", - atomic_read(&sk->sk_refcnt)); - atomic_set(&sk->sk_refcnt, 1); - } - sock_put(sk); - atomic_dec(&wanpipe_socks_nr); - return 0; -} - -/*============================================================ - * check_write_queue - * - * During sock shutdown, if the sock state is - * WANSOCK_CONNECTED and there is transmit data - * pending. Wait until data is released - * before proceeding. - *===========================================================*/ - -static void check_write_queue(struct sock *sk) -{ - - if (sk->sk_state != WANSOCK_CONNECTED) - return; - - if (!atomic_read(&sk->sk_wmem_alloc)) - return; - - printk(KERN_INFO "wansock: MAJOR ERROR, Data lost on sock release !!!\n"); - -} - -/*============================================================ - * release_driver - * - * This function is called during sock shutdown, to - * release any resources and links that bind the sock - * to the driver. It also changes the state of the - * sock to WANSOCK_DISCONNECTED - *===========================================================*/ - -static void release_driver(struct sock *sk) -{ - wanpipe_opt *wp; - struct sk_buff *skb=NULL; - struct sock *deadsk=NULL; - - if (sk->sk_state == WANSOCK_LISTEN || - sk->sk_state == WANSOCK_BIND_LISTEN) { - while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { - if ((deadsk = get_newsk_from_skb(skb))){ - DBG_PRINTK (KERN_INFO "wansock: RELEASE: FOUND DEAD SOCK\n"); - sock_set_flag(deadsk, SOCK_DEAD); - start_cleanup_timer(deadsk); - } - kfree_skb(skb); - } - if (sock_flag(sk, SOCK_ZAPPED)) - wanpipe_unlink_card(sk); - }else{ - if (sock_flag(sk, SOCK_ZAPPED)) - wanpipe_unlink_driver(sk); - } - sk->sk_state = WANSOCK_DISCONNECTED; - sk->sk_bound_dev_if = 0; - sock_reset_flag(sk, SOCK_ZAPPED); - wp = wp_sk(sk); - - if (wp) { - kfree(wp->mbox); - wp->mbox = NULL; - } -} - -/*============================================================ - * start_cleanup_timer - * - * If new incoming call's are pending but the socket - * is being released, start the timer which will - * envoke the kill routines for pending socks. - *===========================================================*/ - - -static void start_cleanup_timer (struct sock *sk) -{ - del_timer(&sk->sk_timer); - sk->sk_timer.data = (unsigned long)sk; - sk->sk_timer.expires = jiffies + HZ; - sk->sk_timer.function = wanpipe_kill_sock_timer; - add_timer(&sk->sk_timer); -} - - -/*============================================================ - * wanpipe_kill_sock - * - * This is a function which performs actual killing - * of the sock. It releases socket resources, - * and unlinks the sock from the driver. - *===========================================================*/ - -static void wanpipe_kill_sock_timer (unsigned long data) -{ - - struct sock *sk = (struct sock *)data; - struct sock **skp; - - if (!sk) - return; - - /* This function can be called from interrupt. We must use - * appropriate locks */ - - if (test_bit(1,&wanpipe_tx_critical)){ - sk->sk_timer.expires = jiffies + 10; - add_timer(&sk->sk_timer); - return; - } - - write_lock(&wanpipe_sklist_lock); - sk_del_node_init(sk); - write_unlock(&wanpipe_sklist_lock); - - - if (wp_sk(sk)->num == htons(X25_PROT) && - sk->sk_state != WANSOCK_DISCONNECTED) { - struct net_device *dev = dev_get_by_index(sk->sk_bound_dev_if); - wanpipe_common_t *chan; - if (dev){ - chan=dev->priv; - atomic_set(&chan->disconnect,1); - dev_put(dev); - } - } - - release_driver(sk); - - sk->sk_socket = NULL; - - /* Purge queues */ - skb_queue_purge(&sk->sk_receive_queue); - skb_queue_purge(&sk->sk_write_queue); - skb_queue_purge(&sk->sk_error_queue); - - if (atomic_read(&sk->sk_rmem_alloc) || - atomic_read(&sk->sk_wmem_alloc)) { - del_timer(&sk->sk_timer); - printk(KERN_INFO "wansock: Killing SOCK in Timer\n"); - sk->sk_timer.data = (unsigned long)sk; - sk->sk_timer.expires = jiffies + HZ; - sk->sk_timer.function = wanpipe_destroy_timer; - add_timer(&sk->sk_timer); - return; - } - - kfree(wp_sk(sk)); - wp_sk(sk) = NULL; - - if (atomic_read(&sk->sk_refcnt) != 1) { - atomic_set(&sk->sk_refcnt, 1); - DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i ! :timer.\n", - atomic_read(&sk->sk_refcnt)); - } - sock_put(sk); - atomic_dec(&wanpipe_socks_nr); - return; -} - -static void wanpipe_kill_sock_accept (struct sock *sk) -{ - - struct sock **skp; - - if (!sk) - return; - - /* This function can be called from interrupt. We must use - * appropriate locks */ - - write_lock(&wanpipe_sklist_lock); - sk_del_node_init(sk); - write_unlock(&wanpipe_sklist_lock); - - sk->sk_socket = NULL; - - - kfree(wp_sk(sk)); - wp_sk(sk) = NULL; - - if (atomic_read(&sk->sk_refcnt) != 1) { - atomic_set(&sk->sk_refcnt, 1); - DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i ! :timer.\n", - atomic_read(&sk->sk_refcnt)); - } - sock_put(sk); - atomic_dec(&wanpipe_socks_nr); - return; -} - - -static void wanpipe_kill_sock_irq (struct sock *sk) -{ - - if (!sk) - return; - - sk->sk_socket = NULL; - - kfree(wp_sk(sk)); - wp_sk(sk) = NULL; - - if (atomic_read(&sk->sk_refcnt) != 1) { - atomic_set(&sk->sk_refcnt, 1); - DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i !:listen.\n", - atomic_read(&sk->sk_refcnt)); - } - sock_put(sk); - atomic_dec(&wanpipe_socks_nr); -} - - -/*============================================================ - * wanpipe_do_bind - * - * Bottom half of the binding system call. - * Once the wanpipe_bind() function checks the - * legality of the call, this function binds the - * sock to the driver. - *===========================================================*/ - -static int wanpipe_do_bind(struct sock *sk, struct net_device *dev, - int protocol) -{ - wanpipe_opt *wp = wp_sk(sk); - wanpipe_common_t *chan=NULL; - int err=0; - - if (sock_flag(sk, SOCK_ZAPPED)) { - err = -EALREADY; - goto bind_unlock_exit; - } - - wp->num = protocol; - - if (protocol == 0){ - release_device(dev); - err = -EINVAL; - goto bind_unlock_exit; - } - - if (dev) { - if (dev->flags&IFF_UP) { - chan=dev->priv; - sk->sk_state = chan->state; - - if (wp->num == htons(X25_PROT) && - sk->sk_state != WANSOCK_DISCONNECTED && - sk->sk_state != WANSOCK_CONNECTING) { - DBG_PRINTK(KERN_INFO - "wansock: Binding to Device not DISCONNECTED %i\n", - sk->sk_state); - release_device(dev); - err = -EAGAIN; - goto bind_unlock_exit; - } - - wanpipe_link_driver(dev,sk); - sk->sk_bound_dev_if = dev->ifindex; - - /* X25 Specific option */ - if (wp->num == htons(X25_PROT)) - wp_sk(sk)->svc = chan->svc; - - } else { - sk->sk_err = ENETDOWN; - sk->sk_error_report(sk); - release_device(dev); - err = -EINVAL; - } - } else { - err = -ENODEV; - } -bind_unlock_exit: - /* FIXME where is this lock */ - - return err; -} - -/*============================================================ - * wanpipe_bind - * - * BIND() System call, which is bound to the AF_WANPIPE - * operations structure. It checks for correct wanpipe - * card name, and cross references interface names with - * the card names. Thus, interface name must belong to - * the actual card. - *===========================================================*/ - - -static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) -{ - struct wan_sockaddr_ll *sll = (struct wan_sockaddr_ll*)uaddr; - struct sock *sk=sock->sk; - wanpipe_opt *wp = wp_sk(sk); - struct net_device *dev = NULL; - sdla_t *card=NULL; - char name[15]; - - /* - * Check legality - */ - - if (addr_len < sizeof(struct wan_sockaddr_ll)){ - printk(KERN_INFO "wansock: Address length error\n"); - return -EINVAL; - } - if (sll->sll_family != AF_WANPIPE){ - printk(KERN_INFO "wansock: Illegal family name specified.\n"); - return -EINVAL; - } - - card = wanpipe_find_card (sll->sll_card); - if (!card){ - printk(KERN_INFO "wansock: Wanpipe card not found: %s\n",sll->sll_card); - return -ENODEV; - }else{ - wp_sk(sk)->card = (void *)card; - } - - if (!strcmp(sll->sll_device,"svc_listen")){ - - /* Bind a sock to a card structure for listening - */ - int err=0; - - /* This is x25 specific area if protocol doesn't - * match, return error */ - if (sll->sll_protocol != htons(X25_PROT)) - return -EINVAL; - - err= wanpipe_link_card (sk); - if (err < 0) - return err; - - if (sll->sll_protocol) - wp->num = sll->sll_protocol; - sk->sk_state = WANSOCK_BIND_LISTEN; - return 0; - - }else if (!strcmp(sll->sll_device,"svc_connect")){ - - /* This is x25 specific area if protocol doesn't - * match, return error */ - if (sll->sll_protocol != htons(X25_PROT)) - return -EINVAL; - - /* Find a free device - */ - dev = wanpipe_find_free_dev(card); - if (dev == NULL){ - DBG_PRINTK(KERN_INFO "wansock: No free network devices for card %s\n", - card->devname); - return -EINVAL; - } - }else{ - /* Bind a socket to a interface name - * This is used by PVC mostly - */ - strlcpy(name,sll->sll_device,sizeof(name)); - dev = dev_get_by_name(name); - if (dev == NULL){ - printk(KERN_INFO "wansock: Failed to get Dev from name: %s,\n", - name); - return -ENODEV; - } - - dev_put(dev); - - if (check_dev(dev, card)){ - printk(KERN_INFO "wansock: Device %s, doesn't belong to card %s\n", - dev->name, card->devname); - return -EINVAL; - } - if (get_atomic_device (dev)) - return -EINVAL; - } - - return wanpipe_do_bind(sk, dev, sll->sll_protocol ? : wp->num); -} - -/*============================================================ - * get_atomic_device - * - * Sets a bit atomically which indicates that - * the interface is taken. This avoids race conditions. - *===========================================================*/ - - -static inline int get_atomic_device(struct net_device *dev) -{ - wanpipe_common_t *chan = dev->priv; - if (!test_and_set_bit(0,(void *)&chan->rw_bind)){ - return 0; - } - return 1; -} - -/*============================================================ - * check_dev - * - * Check that device name belongs to a particular card. - *===========================================================*/ - -static int check_dev(struct net_device *dev, sdla_t *card) -{ - struct net_device* tmp_dev; - - for (tmp_dev = card->wandev.dev; tmp_dev; - tmp_dev = *((struct net_device **)tmp_dev->priv)) { - if (tmp_dev->ifindex == dev->ifindex){ - return 0; - } - } - return 1; -} - -/*============================================================ - * wanpipe_find_free_dev - * - * Find a free network interface. If found set atomic - * bit indicating that the interface is taken. - * X25API Specific. - *===========================================================*/ - -struct net_device *wanpipe_find_free_dev(sdla_t *card) -{ - struct net_device* dev; - volatile wanpipe_common_t *chan; - - if (test_and_set_bit(0,&find_free_critical)){ - printk(KERN_INFO "CRITICAL in Find Free\n"); - } - - for (dev = card->wandev.dev; dev; - dev = *((struct net_device **)dev->priv)) { - chan = dev->priv; - if (!chan) - continue; - if (chan->usedby == API && chan->svc){ - if (!get_atomic_device (dev)){ - if (chan->state != WANSOCK_DISCONNECTED){ - release_device(dev); - }else{ - clear_bit(0,&find_free_critical); - return dev; - } - } - } - } - clear_bit(0,&find_free_critical); - return NULL; -} - -/*============================================================ - * wanpipe_create - * - * SOCKET() System call. It allocates a sock structure - * and adds the socket to the wanpipe_sk_list. - * Crates AF_WANPIPE socket. - *===========================================================*/ - -static int wanpipe_create(struct socket *sock, int protocol) -{ - struct sock *sk; - - //FIXME: This checks for root user, SECURITY ? - //if (!capable(CAP_NET_RAW)) - // return -EPERM; - - if (sock->type != SOCK_DGRAM && sock->type != SOCK_RAW) - return -ESOCKTNOSUPPORT; - - sock->state = SS_UNCONNECTED; - - if ((sk = wanpipe_alloc_socket()) == NULL) - return -ENOBUFS; - - sk->sk_reuse = 1; - sock->ops = &wanpipe_ops; - sock_init_data(sock,sk); - - sock_reset_flag(sk, SOCK_ZAPPED); - sk->sk_family = PF_WANPIPE; - wp_sk(sk)->num = protocol; - sk->sk_state = WANSOCK_DISCONNECTED; - sk->sk_ack_backlog = 0; - sk->sk_bound_dev_if = 0; - - atomic_inc(&wanpipe_socks_nr); - - /* We must disable interrupts because the ISR - * can also change the list */ - set_bit(1,&wanpipe_tx_critical); - write_lock(&wanpipe_sklist_lock); - sk_add_node(sk, &wanpipe_sklist); - write_unlock(&wanpipe_sklist_lock); - clear_bit(1,&wanpipe_tx_critical); - - return(0); -} - - -/*============================================================ - * wanpipe_recvmsg - * - * Pull a packet from our receive queue and hand it - * to the user. If necessary we block. - *===========================================================*/ - -static int wanpipe_recvmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, int len, int flags) -{ - struct sock *sk = sock->sk; - struct sk_buff *skb; - int copied, err=-ENOBUFS; - - - /* - * If the address length field is there to be filled in, we fill - * it in now. - */ - - msg->msg_namelen = sizeof(struct wan_sockaddr_ll); - - /* - * Call the generic datagram receiver. This handles all sorts - * of horrible races and re-entrancy so we can forget about it - * in the protocol layers. - * - * Now it will return ENETDOWN, if device have just gone down, - * but then it will block. - */ - - if (flags & MSG_OOB){ - skb = skb_dequeue(&sk->sk_error_queue); - }else{ - skb=skb_recv_datagram(sk,flags,1,&err); - } - /* - * An error occurred so return it. Because skb_recv_datagram() - * handles the blocking we don't see and worry about blocking - * retries. - */ - - if(skb==NULL) - goto out; - - /* - * You lose any data beyond the buffer you gave. If it worries a - * user program they can ask the device for its MTU anyway. - */ - - copied = skb->len; - if (copied > len) - { - copied=len; - msg->msg_flags|=MSG_TRUNC; - } - - wanpipe_wakeup_driver(sk); - - /* We can't use skb_copy_datagram here */ - err = memcpy_toiovec(msg->msg_iov, skb->data, copied); - if (err) - goto out_free; - - sock_recv_timestamp(msg, sk, skb); - - if (msg->msg_name) - memcpy(msg->msg_name, skb->cb, msg->msg_namelen); - - /* - * Free or return the buffer as appropriate. Again this - * hides all the races and re-entrancy issues from us. - */ - err = (flags&MSG_TRUNC) ? skb->len : copied; - -out_free: - skb_free_datagram(sk, skb); -out: - return err; -} - - -/*============================================================ - * wanpipe_wakeup_driver - * - * If socket receive buffer is full and driver cannot - * pass data up the sock, it sets a packet_block flag. - * This function check that flag and if sock receive - * queue has room it kicks the driver BH handler. - * - * This way, driver doesn't have to poll the sock - * receive queue. - *===========================================================*/ - -static void wanpipe_wakeup_driver(struct sock *sk) -{ - struct net_device *dev = NULL; - wanpipe_common_t *chan=NULL; - - dev = dev_get_by_index(sk->sk_bound_dev_if); - if (!dev) - return; - - dev_put(dev); - - if ((chan = dev->priv) == NULL) - return; - - if (atomic_read(&chan->receive_block)){ - if (atomic_read(&sk->sk_rmem_alloc) < - ((unsigned)sk->sk_rcvbuf * 0.9)) { - printk(KERN_INFO "wansock: Queuing task for wanpipe\n"); - atomic_set(&chan->receive_block,0); - wanpipe_queue_tq(&chan->wanpipe_task); - wanpipe_mark_bh(); - } - } -} - -/*============================================================ - * wanpipe_getname - * - * I don't know what to do with this yet. - * User can use this function to get sock address - * information. Not very useful for Sangoma's purposes. - *===========================================================*/ - - -static int wanpipe_getname(struct socket *sock, struct sockaddr *uaddr, - int *uaddr_len, int peer) -{ - struct net_device *dev; - struct sock *sk = sock->sk; - struct wan_sockaddr_ll *sll = (struct wan_sockaddr_ll*)uaddr; - - sll->sll_family = AF_WANPIPE; - sll->sll_ifindex = sk->sk_bound_dev_if; - sll->sll_protocol = wp_sk(sk)->num; - dev = dev_get_by_index(sk->sk_bound_dev_if); - if (dev) { - sll->sll_hatype = dev->type; - sll->sll_halen = dev->addr_len; - memcpy(sll->sll_addr, dev->dev_addr, dev->addr_len); - } else { - sll->sll_hatype = 0; /* Bad: we have no ARPHRD_UNSPEC */ - sll->sll_halen = 0; - } - *uaddr_len = sizeof(*sll); - - dev_put(dev); - - return 0; -} - -/*============================================================ - * wanpipe_notifier - * - * If driver turns off network interface, this function - * will be envoked. Currently I treate it as a - * call disconnect. More thought should go into this - * function. - * - * FIXME: More thought should go into this function. - * - *===========================================================*/ - -static int wanpipe_notifier(struct notifier_block *this, unsigned long msg, void *data) -{ - struct sock *sk; - hlist_node *node; - struct net_device *dev = (struct net_device *)data; - - sk_for_each(sk, node, &wanpipe_sklist) { - struct wanpipe_opt *po = wp_sk(sk); - - if (!po) - continue; - if (dev == NULL) - continue; - - switch (msg) { - case NETDEV_DOWN: - case NETDEV_UNREGISTER: - if (dev->ifindex == sk->sk_bound_dev_if) { - printk(KERN_INFO "wansock: Device down %s\n",dev->name); - if (sock_flag(sk, SOCK_ZAPPED)) { - wanpipe_unlink_driver(sk); - sk->sk_err = ENETDOWN; - sk->sk_error_report(sk); - } - - if (msg == NETDEV_UNREGISTER) { - printk(KERN_INFO "wansock: Unregistering Device: %s\n", - dev->name); - wanpipe_unlink_driver(sk); - sk->sk_bound_dev_if = 0; - } - } - break; - case NETDEV_UP: - if (dev->ifindex == sk->sk_bound_dev_if && - po->num && !sock_flag(sk, SOCK_ZAPPED)) { - printk(KERN_INFO "wansock: Registering Device: %s\n", - dev->name); - wanpipe_link_driver(dev,sk); - } - break; - } - } - return NOTIFY_DONE; -} - -/*============================================================ - * wanpipe_ioctl - * - * Execute a user commands, and set socket options. - * - * FIXME: More thought should go into this function. - * - *===========================================================*/ - -static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) -{ - struct sock *sk = sock->sk; - int err; - - switch(cmd) - { - case SIOCGSTAMP: - return sock_get_timestamp(sk, (struct timeval __user *)arg); - - case SIOC_WANPIPE_CHECK_TX: - - return atomic_read(&sk->sk_wmem_alloc); - - case SIOC_WANPIPE_SOCK_STATE: - - if (sk->sk_state == WANSOCK_CONNECTED) - return 0; - - return 1; - - - case SIOC_WANPIPE_GET_CALL_DATA: - - return get_ioctl_cmd (sk,(void*)arg); - - case SIOC_WANPIPE_SET_CALL_DATA: - - return set_ioctl_cmd (sk,(void*)arg); - - case SIOC_WANPIPE_ACCEPT_CALL: - case SIOC_WANPIPE_CLEAR_CALL: - case SIOC_WANPIPE_RESET_CALL: - - if ((err=set_ioctl_cmd(sk,(void*)arg)) < 0) - return err; - - err=wanpipe_exec_cmd(sk,cmd,0); - get_ioctl_cmd(sk,(void*)arg); - return err; - - case SIOC_WANPIPE_DEBUG: - - return wanpipe_debug(sk,(void*)arg); - - case SIOC_WANPIPE_SET_NONBLOCK: - - if (sk->sk_state != WANSOCK_DISCONNECTED) - return -EINVAL; - - sock->file->f_flags |= O_NONBLOCK; - return 0; - -#ifdef CONFIG_INET - case SIOCADDRT: - case SIOCDELRT: - case SIOCDARP: - case SIOCGARP: - case SIOCSARP: - case SIOCDRARP: - case SIOCGRARP: - case SIOCSRARP: - case SIOCGIFADDR: - case SIOCSIFADDR: - case SIOCGIFBRDADDR: - case SIOCSIFBRDADDR: - case SIOCGIFNETMASK: - case SIOCSIFNETMASK: - case SIOCGIFDSTADDR: - case SIOCSIFDSTADDR: - case SIOCSIFFLAGS: - return inet_dgram_ops.ioctl(sock, cmd, arg); -#endif - - default: - return -ENOIOCTLCMD; - } - /*NOTREACHED*/ -} - -/*============================================================ - * wanpipe_debug - * - * This function will pass up information about all - * active sockets. - * - * FIXME: More thought should go into this function. - * - *===========================================================*/ - -static int wanpipe_debug (struct sock *origsk, void *arg) -{ - struct sock *sk; - struct hlist_node *node; - struct net_device *dev = NULL; - wanpipe_common_t *chan=NULL; - int cnt=0, err=0; - wan_debug_t *dbg_data = (wan_debug_t *)arg; - - sk_for_each(sk, node, &wanpipe_sklist) { - wanpipe_opt *wp = wp_sk(sk); - - if (sk == origsk){ - continue; - } - - if ((err=put_user(1, &dbg_data->debug[cnt].free))) - return err; - if ((err = put_user(sk->sk_state, - &dbg_data->debug[cnt].state_sk))) - return err; - if ((err = put_user(sk->sk_rcvbuf, - &dbg_data->debug[cnt].rcvbuf))) - return err; - if ((err = put_user(atomic_read(&sk->sk_rmem_alloc), - &dbg_data->debug[cnt].rmem))) - return err; - if ((err = put_user(atomic_read(&sk->sk_wmem_alloc), - &dbg_data->debug[cnt].wmem))) - return err; - if ((err = put_user(sk->sk_sndbuf, - &dbg_data->debug[cnt].sndbuf))) - return err; - if ((err=put_user(sk_count, &dbg_data->debug[cnt].sk_count))) - return err; - if ((err=put_user(wp->poll_cnt, &dbg_data->debug[cnt].poll_cnt))) - return err; - if ((err = put_user(sk->sk_bound_dev_if, - &dbg_data->debug[cnt].bound))) - return err; - - if (sk->sk_bound_dev_if) { - dev = dev_get_by_index(sk->sk_bound_dev_if); - if (!dev) - continue; - - chan=dev->priv; - dev_put(dev); - - if ((err=put_user(chan->state, &dbg_data->debug[cnt].d_state))) - return err; - if ((err=put_user(chan->svc, &dbg_data->debug[cnt].svc))) - return err; - - if ((err=put_user(atomic_read(&chan->command), - &dbg_data->debug[cnt].command))) - return err; - - - if (wp){ - sdla_t *card = (sdla_t*)wp->card; - - if (card){ - if ((err=put_user(atomic_read(&card->u.x.command_busy), - &dbg_data->debug[cnt].cmd_busy))) - return err; - } - - if ((err=put_user(wp->lcn, - &dbg_data->debug[cnt].lcn))) - return err; - - if (wp->mbox) { - if ((err=put_user(1, &dbg_data->debug[cnt].mbox))) - return err; - } - } - - if ((err=put_user(atomic_read(&chan->receive_block), - &dbg_data->debug[cnt].rblock))) - return err; - - if (copy_to_user(dbg_data->debug[cnt].name, dev->name, strlen(dev->name))) - return -EFAULT; - } - - if (++cnt == MAX_NUM_DEBUG) - break; - } - return 0; -} - -/*============================================================ - * get_ioctl_cmd - * - * Pass up the contents of socket MBOX to the user. - *===========================================================*/ - -static int get_ioctl_cmd (struct sock *sk, void *arg) -{ - x25api_t *usr_data = (x25api_t *)arg; - mbox_cmd_t *mbox_ptr; - int err; - - if (usr_data == NULL) - return -EINVAL; - - if (!wp_sk(sk)->mbox) { - return -EINVAL; - } - - mbox_ptr = (mbox_cmd_t *)wp_sk(sk)->mbox; - - if ((err=put_user(mbox_ptr->cmd.qdm, &usr_data->hdr.qdm))) - return err; - if ((err=put_user(mbox_ptr->cmd.cause, &usr_data->hdr.cause))) - return err; - if ((err=put_user(mbox_ptr->cmd.diagn, &usr_data->hdr.diagn))) - return err; - if ((err=put_user(mbox_ptr->cmd.length, &usr_data->hdr.length))) - return err; - if ((err=put_user(mbox_ptr->cmd.result, &usr_data->hdr.result))) - return err; - if ((err=put_user(mbox_ptr->cmd.lcn, &usr_data->hdr.lcn))) - return err; - - if (mbox_ptr->cmd.length > 0){ - if (mbox_ptr->cmd.length > X25_MAX_DATA) - return -EINVAL; - - if (copy_to_user(usr_data->data, mbox_ptr->data, mbox_ptr->cmd.length)){ - printk(KERN_INFO "wansock: Copy failed !!!\n"); - return -EFAULT; - } - } - return 0; -} - -/*============================================================ - * set_ioctl_cmd - * - * Before command can be execute, socket MBOX must - * be created, and initialized with user data. - *===========================================================*/ - -static int set_ioctl_cmd (struct sock *sk, void *arg) -{ - x25api_t *usr_data = (x25api_t *)arg; - mbox_cmd_t *mbox_ptr; - int err; - - if (!wp_sk(sk)->mbox) { - void *mbox_ptr; - struct net_device *dev = dev_get_by_index(sk->sk_bound_dev_if); - if (!dev) - return -ENODEV; - - dev_put(dev); - - if ((mbox_ptr = kzalloc(sizeof(mbox_cmd_t), GFP_ATOMIC)) == NULL) - return -ENOMEM; - - wp_sk(sk)->mbox = mbox_ptr; - - wanpipe_link_driver(dev,sk); - } - - mbox_ptr = (mbox_cmd_t*)wp_sk(sk)->mbox; - memset(mbox_ptr, 0, sizeof(mbox_cmd_t)); - - if (usr_data == NULL){ - return 0; - } - if ((err=get_user(mbox_ptr->cmd.qdm, &usr_data->hdr.qdm))) - return err; - if ((err=get_user(mbox_ptr->cmd.cause, &usr_data->hdr.cause))) - return err; - if ((err=get_user(mbox_ptr->cmd.diagn, &usr_data->hdr.diagn))) - return err; - if ((err=get_user(mbox_ptr->cmd.length, &usr_data->hdr.length))) - return err; - if ((err=get_user(mbox_ptr->cmd.result, &usr_data->hdr.result))) - return err; - - if (mbox_ptr->cmd.length > 0){ - if (mbox_ptr->cmd.length > X25_MAX_DATA) - return -EINVAL; - - if (copy_from_user(mbox_ptr->data, usr_data->data, mbox_ptr->cmd.length)){ - printk(KERN_INFO "Copy failed\n"); - return -EFAULT; - } - } - return 0; -} - - -/*====================================================================== - * wanpipe_poll - * - * Datagram poll: Again totally generic. This also handles - * sequenced packet sockets providing the socket receive queue - * is only ever holding data ready to receive. - * - * Note: when you _don't_ use this routine for this protocol, - * and you use a different write policy from sock_writeable() - * then please supply your own write_space callback. - *=====================================================================*/ - -unsigned int wanpipe_poll(struct file * file, struct socket *sock, poll_table *wait) -{ - struct sock *sk = sock->sk; - unsigned int mask; - - ++wp_sk(sk)->poll_cnt; - - poll_wait(file, sk->sk_sleep, wait); - mask = 0; - - /* exceptional events? */ - if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) { - mask |= POLLPRI; - return mask; - } - if (sk->sk_shutdown & RCV_SHUTDOWN) - mask |= POLLHUP; - - /* readable? */ - if (!skb_queue_empty(&sk->sk_receive_queue)) { - mask |= POLLIN | POLLRDNORM; - } - - /* connection hasn't started yet */ - if (sk->sk_state == WANSOCK_CONNECTING) { - return mask; - } - - if (sk->sk_state == WANSOCK_DISCONNECTED) { - mask = POLLPRI; - return mask; - } - - /* This check blocks the user process if there is - * a packet already queued in the socket write queue. - * This option is only for X25API protocol, for other - * protocol like chdlc enable streaming mode, - * where multiple packets can be pending in the socket - * transmit queue */ - - if (wp_sk(sk)->num == htons(X25_PROT)) { - if (atomic_read(&wp_sk(sk)->packet_sent)) - return mask; - } - - /* writable? */ - if (sock_writeable(sk)){ - mask |= POLLOUT | POLLWRNORM | POLLWRBAND; - }else{ - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); - } - - return mask; -} - -/*====================================================================== - * wanpipe_listen - * - * X25API Specific function. Set a socket into LISTENING MODE. - *=====================================================================*/ - - -static int wanpipe_listen(struct socket *sock, int backlog) -{ - struct sock *sk = sock->sk; - - /* This is x25 specific area if protocol doesn't - * match, return error */ - if (wp_sk(sk)->num != htons(X25_PROT)) - return -EINVAL; - - if (sk->sk_state == WANSOCK_BIND_LISTEN) { - - sk->sk_max_ack_backlog = backlog; - sk->sk_state = WANSOCK_LISTEN; - return 0; - }else{ - printk(KERN_INFO "wansock: Listening sock was not binded\n"); - } - - return -EINVAL; -} - -/*====================================================================== - * wanpipe_link_card - * - * Connects the listening socket to the driver - *=====================================================================*/ - -static int wanpipe_link_card (struct sock *sk) -{ - sdla_t *card = (sdla_t*)wp_sk(sk)->card; - - if (!card) - return -ENOMEM; - - if ((card->sk != NULL) || (card->func != NULL)){ - printk(KERN_INFO "wansock: Listening queue is already established\n"); - return -EINVAL; - } - - card->sk=sk; - card->func=wanpipe_listen_rcv; - sock_set_flag(sk, SOCK_ZAPPED); - - return 0; -} - -/*====================================================================== - * wanpipe_listen - * - * X25API Specific function. Disconnect listening socket from - * the driver. - *=====================================================================*/ - -static void wanpipe_unlink_card (struct sock *sk) -{ - sdla_t *card = (sdla_t*)wp_sk(sk)->card; - - if (card){ - card->sk=NULL; - card->func=NULL; - } -} - -/*====================================================================== - * wanpipe_exec_cmd - * - * Ioctl function calls this function to execute user command. - * Connect() sytem call also calls this function to execute - * place call. This function blocks until command is executed. - *=====================================================================*/ - -static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags) -{ - int err = -EINVAL; - wanpipe_opt *wp = wp_sk(sk); - mbox_cmd_t *mbox_ptr = (mbox_cmd_t*)wp->mbox; - - if (!mbox_ptr){ - printk(KERN_INFO "NO MBOX PTR !!!!!\n"); - return -EINVAL; - } - - /* This is x25 specific area if protocol doesn't - * match, return error */ - if (wp->num != htons(X25_PROT)) - return -EINVAL; - - - switch (cmd){ - - case SIOC_WANPIPE_ACCEPT_CALL: - - if (sk->sk_state != WANSOCK_CONNECTING) { - err = -EHOSTDOWN; - break; - } - - err = execute_command(sk,X25_ACCEPT_CALL,0); - if (err < 0) - break; - - /* Update. Mar6 2000. - * Do not set the sock lcn number here, since - * it is done in wanpipe_listen_rcv(). - */ - if (sk->sk_state == WANSOCK_CONNECTED) { - wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn; - DBG_PRINTK(KERN_INFO "\nwansock: Accept OK %i\n", - wp->lcn); - err = 0; - - }else{ - DBG_PRINTK (KERN_INFO "\nwansock: Accept Failed %i\n", - wp->lcn); - wp->lcn = 0; - err = -ECONNREFUSED; - } - break; - - case SIOC_WANPIPE_CLEAR_CALL: - - if (sk->sk_state == WANSOCK_DISCONNECTED) { - err = -EINVAL; - break; - } - - - /* Check if data buffers are pending for transmission, - * if so, check whether user wants to wait until data - * is transmitted, or clear a call and drop packets */ - - if (atomic_read(&sk->sk_wmem_alloc) || - check_driver_busy(sk)) { - mbox_cmd_t *mbox = wp->mbox; - if (mbox->cmd.qdm & 0x80){ - mbox->cmd.result = 0x35; - err = -EAGAIN; - break; - } - } - - sk->sk_state = WANSOCK_DISCONNECTING; - - err = execute_command(sk,X25_CLEAR_CALL,0); - if (err < 0) - break; - - err = -ECONNREFUSED; - if (sk->sk_state == WANSOCK_DISCONNECTED) { - DBG_PRINTK(KERN_INFO "\nwansock: CLEAR OK %i\n", - wp->lcn); - wp->lcn = 0; - err = 0; - } - break; - - case SIOC_WANPIPE_RESET_CALL: - - if (sk->sk_state != WANSOCK_CONNECTED) { - err = -EINVAL; - break; - } - - - /* Check if data buffers are pending for transmission, - * if so, check whether user wants to wait until data - * is transmitted, or reset a call and drop packets */ - - if (atomic_read(&sk->sk_wmem_alloc) || - check_driver_busy(sk)) { - mbox_cmd_t *mbox = wp->mbox; - if (mbox->cmd.qdm & 0x80){ - mbox->cmd.result = 0x35; - err = -EAGAIN; - break; - } - } - - - err = execute_command(sk, X25_RESET,0); - if (err < 0) - break; - - err = mbox_ptr->cmd.result; - break; - - - case X25_PLACE_CALL: - - err=execute_command(sk,X25_PLACE_CALL,flags); - if (err < 0) - break; - - if (sk->sk_state == WANSOCK_CONNECTED) { - - wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn; - - DBG_PRINTK(KERN_INFO "\nwansock: PLACE CALL OK %i\n", - wp->lcn); - err = 0; - - } else if (sk->sk_state == WANSOCK_CONNECTING && - (flags & O_NONBLOCK)) { - wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn; - DBG_PRINTK(KERN_INFO "\nwansock: Place Call OK: Waiting %i\n", - wp->lcn); - - err = 0; - - }else{ - DBG_PRINTK(KERN_INFO "\nwansock: Place call Failed\n"); - err = -ECONNREFUSED; - } - - break; - - default: - return -EINVAL; - } - - return err; -} - -static int check_driver_busy (struct sock *sk) -{ - struct net_device *dev = dev_get_by_index(sk->sk_bound_dev_if); - wanpipe_common_t *chan; - - if (!dev) - return 0; - - dev_put(dev); - - if ((chan=dev->priv) == NULL) - return 0; - - return atomic_read(&chan->driver_busy); -} - - -/*====================================================================== - * wanpipe_accept - * - * ACCEPT() System call. X25API Specific function. - * For each incoming call, create a new socket and - * return it to the user. - *=====================================================================*/ - -static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags) -{ - struct sock *sk; - struct sock *newsk; - struct sk_buff *skb; - DECLARE_WAITQUEUE(wait, current); - int err=0; - - if (newsock->sk != NULL){ - wanpipe_kill_sock_accept(newsock->sk); - newsock->sk=NULL; - } - - if ((sk = sock->sk) == NULL) - return -EINVAL; - - if (sk->sk_type != SOCK_RAW) - return -EOPNOTSUPP; - - if (sk->sk_state != WANSOCK_LISTEN) - return -EINVAL; - - if (wp_sk(sk)->num != htons(X25_PROT)) - return -EINVAL; - - add_wait_queue(sk->sk_sleep,&wait); - current->state = TASK_INTERRUPTIBLE; - for (;;){ - skb = skb_dequeue(&sk->sk_receive_queue); - if (skb){ - err=0; - break; - } - if (signal_pending(current)) { - err = -ERESTARTSYS; - break; - } - schedule(); - } - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep,&wait); - - if (err != 0) - return err; - - newsk = get_newsk_from_skb(skb); - if (!newsk){ - return -EINVAL; - } - - set_bit(1,&wanpipe_tx_critical); - write_lock(&wanpipe_sklist_lock); - sk_add_node(newsk, &wanpipe_sklist); - write_unlock(&wanpipe_sklist_lock); - clear_bit(1,&wanpipe_tx_critical); - - newsk->sk_socket = newsock; - newsk->sk_sleep = &newsock->wait; - - /* Now attach up the new socket */ - sk->sk_ack_backlog--; - newsock->sk = newsk; - - kfree_skb(skb); - - DBG_PRINTK(KERN_INFO "\nwansock: ACCEPT Got LCN %i\n", - wp_sk(newsk)->lcn); - return 0; -} - -/*====================================================================== - * get_newsk_from_skb - * - * Accept() uses this function to get the address of the new - * socket structure. - *=====================================================================*/ - -struct sock * get_newsk_from_skb (struct sk_buff *skb) -{ - struct net_device *dev = skb->dev; - wanpipe_common_t *chan; - - if (!dev){ - return NULL; - } - - if ((chan = dev->priv) == NULL){ - return NULL; - } - - if (!chan->sk){ - return NULL; - } - return (struct sock *)chan->sk; -} - -/*====================================================================== - * wanpipe_connect - * - * CONNECT() System Call. X25API specific function - * Check the state of the sock, and execute PLACE_CALL command. - * Connect can ether block or return without waiting for connection, - * if specified by user. - *=====================================================================*/ - -static int wanpipe_connect(struct socket *sock, struct sockaddr *uaddr, int addr_len, int flags) -{ - struct sock *sk = sock->sk; - struct wan_sockaddr_ll *addr = (struct wan_sockaddr_ll*)uaddr; - struct net_device *dev; - int err; - - if (wp_sk(sk)->num != htons(X25_PROT)) - return -EINVAL; - - if (sk->sk_state == WANSOCK_CONNECTED) - return -EISCONN; /* No reconnect on a seqpacket socket */ - - if (sk->sk_state != WAN_DISCONNECTED) { - printk(KERN_INFO "wansock: Trying to connect on channel NON DISCONNECT\n"); - return -ECONNREFUSED; - } - - sk->sk_state = WANSOCK_DISCONNECTED; - sock->state = SS_UNCONNECTED; - - if (addr_len != sizeof(struct wan_sockaddr_ll)) - return -EINVAL; - - if (addr->sll_family != AF_WANPIPE) - return -EINVAL; - - if ((dev = dev_get_by_index(sk->sk_bound_dev_if)) == NULL) - return -ENETUNREACH; - - dev_put(dev); - - if (!sock_flag(sk, SOCK_ZAPPED)) /* Must bind first - autobinding does not work */ - return -EINVAL; - - sock->state = SS_CONNECTING; - sk->sk_state = WANSOCK_CONNECTING; - - if (!wp_sk(sk)->mbox) { - if (wp_sk (sk)->svc) - return -EINVAL; - else { - int err; - if ((err=set_ioctl_cmd(sk,NULL)) < 0) - return err; - } - } - - if ((err=wanpipe_exec_cmd(sk, X25_PLACE_CALL,flags)) != 0){ - sock->state = SS_UNCONNECTED; - sk->sk_state = WANSOCK_CONNECTED; - return err; - } - - if (sk->sk_state != WANSOCK_CONNECTED && (flags & O_NONBLOCK)) { - return 0; - } - - if (sk->sk_state != WANSOCK_CONNECTED) { - sock->state = SS_UNCONNECTED; - return -ECONNREFUSED; - } - - sock->state = SS_CONNECTED; - return 0; -} - -const struct proto_ops wanpipe_ops = { - .family = PF_WANPIPE, - .owner = THIS_MODULE, - .release = wanpipe_release, - .bind = wanpipe_bind, - .connect = wanpipe_connect, - .socketpair = sock_no_socketpair, - .accept = wanpipe_accept, - .getname = wanpipe_getname, - .poll = wanpipe_poll, - .ioctl = wanpipe_ioctl, - .listen = wanpipe_listen, - .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, - .sendmsg = wanpipe_sendmsg, - .recvmsg = wanpipe_recvmsg -}; - -static struct net_proto_family wanpipe_family_ops = { - .family = PF_WANPIPE, - .create = wanpipe_create, - .owner = THIS_MODULE, -}; - -struct notifier_block wanpipe_netdev_notifier = { - .notifier_call = wanpipe_notifier, -}; - - -#ifdef MODULE -void cleanup_module(void) -{ - printk(KERN_INFO "wansock: Cleaning up \n"); - unregister_netdevice_notifier(&wanpipe_netdev_notifier); - sock_unregister(PF_WANPIPE); - proto_unregister(&wanpipe_proto); -} - -int init_module(void) -{ - int rc; - - printk(KERN_INFO "wansock: Registering Socket \n"); - - rc = proto_register(&wanpipe_proto, 0); - if (rc != 0) - goto out; - - sock_register(&wanpipe_family_ops); - register_netdevice_notifier(&wanpipe_netdev_notifier); -out: - return rc; -} -#endif -MODULE_LICENSE("GPL"); -MODULE_ALIAS_NETPROTO(PF_WANPIPE); diff --git a/net/x25/x25_forward.c b/net/x25/x25_forward.c index d339e0c..8738ec7 100644 --- a/net/x25/x25_forward.c +++ b/net/x25/x25_forward.c @@ -26,64 +26,66 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from, short same_lci = 0; int rc = 0; - if ((rt = x25_get_route(dest_addr)) != NULL) { + if ((rt = x25_get_route(dest_addr)) == NULL) + goto out_no_route; - if ((neigh_new = x25_get_neigh(rt->dev)) == NULL) { - /* This shouldnt happen, if it occurs somehow - * do something sensible - */ - goto out_put_route; - } - - /* Avoid a loop. This is the normal exit path for a - * system with only one x.25 iface and default route + if ((neigh_new = x25_get_neigh(rt->dev)) == NULL) { + /* This shouldnt happen, if it occurs somehow + * do something sensible */ - if (rt->dev == from->dev) { - goto out_put_nb; - } + goto out_put_route; + } - /* Remote end sending a call request on an already - * established LCI? It shouldnt happen, just in case.. - */ - read_lock_bh(&x25_forward_list_lock); - list_for_each(entry, &x25_forward_list) { - x25_frwd = list_entry(entry, struct x25_forward, node); - if (x25_frwd->lci == lci) { - printk(KERN_WARNING "X.25: call request for lci which is already registered!, transmitting but not registering new pair\n"); - same_lci = 1; - } - } - read_unlock_bh(&x25_forward_list_lock); - - /* Save the forwarding details for future traffic */ - if (!same_lci){ - if ((new_frwd = kmalloc(sizeof(struct x25_forward), - GFP_ATOMIC)) == NULL){ - rc = -ENOMEM; - goto out_put_nb; - } - new_frwd->lci = lci; - new_frwd->dev1 = rt->dev; - new_frwd->dev2 = from->dev; - write_lock_bh(&x25_forward_list_lock); - list_add(&new_frwd->node, &x25_forward_list); - write_unlock_bh(&x25_forward_list_lock); + /* Avoid a loop. This is the normal exit path for a + * system with only one x.25 iface and default route + */ + if (rt->dev == from->dev) { + goto out_put_nb; + } + + /* Remote end sending a call request on an already + * established LCI? It shouldnt happen, just in case.. + */ + read_lock_bh(&x25_forward_list_lock); + list_for_each(entry, &x25_forward_list) { + x25_frwd = list_entry(entry, struct x25_forward, node); + if (x25_frwd->lci == lci) { + printk(KERN_WARNING "X.25: call request for lci which is already registered!, transmitting but not registering new pair\n"); + same_lci = 1; } + } + read_unlock_bh(&x25_forward_list_lock); - /* Forward the call request */ - if ( (skbn = skb_clone(skb, GFP_ATOMIC)) == NULL){ + /* Save the forwarding details for future traffic */ + if (!same_lci){ + if ((new_frwd = kmalloc(sizeof(struct x25_forward), + GFP_ATOMIC)) == NULL){ + rc = -ENOMEM; goto out_put_nb; } - x25_transmit_link(skbn, neigh_new); - rc = 1; + new_frwd->lci = lci; + new_frwd->dev1 = rt->dev; + new_frwd->dev2 = from->dev; + write_lock_bh(&x25_forward_list_lock); + list_add(&new_frwd->node, &x25_forward_list); + write_unlock_bh(&x25_forward_list_lock); } + /* Forward the call request */ + if ( (skbn = skb_clone(skb, GFP_ATOMIC)) == NULL){ + goto out_put_nb; + } + x25_transmit_link(skbn, neigh_new); + rc = 1; + out_put_nb: x25_neigh_put(neigh_new); out_put_route: x25_route_put(rt); + +out_no_route: return rc; } diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 0c3a70a..785c3e3 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2089,7 +2089,7 @@ void xfrm_audit_log(uid_t auid, u32 sid, int type, int result, sizeof(struct in6_addr)); } audit_log_format(audit_buf, - " src=" NIP6_FMT "dst=" NIP6_FMT, + " src=" NIP6_FMT " dst=" NIP6_FMT, NIP6(saddr6), NIP6(daddr6)); } break; diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index a35f9e4..e3a0bcfa 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -704,7 +704,8 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re x->props.mode != mode || x->props.family != family || x->km.state != XFRM_STATE_ACQ || - x->id.spi != 0) + x->id.spi != 0 || + x->id.proto != proto) continue; switch (family) { @@ -801,7 +802,8 @@ int xfrm_state_add(struct xfrm_state *x) if (use_spi && x->km.seq) { x1 = __xfrm_find_acq_byseq(x->km.seq); - if (x1 && xfrm_addr_cmp(&x1->id.daddr, &x->id.daddr, family)) { + if (x1 && ((x1->id.proto != x->id.proto) || + xfrm_addr_cmp(&x1->id.daddr, &x->id.daddr, family))) { xfrm_state_put(x1); x1 = NULL; } @@ -1369,7 +1371,8 @@ int xfrm_replay_check(struct xfrm_state *x, __be32 net_seq) return 0; diff = x->replay.seq - seq; - if (diff >= x->props.replay_window) { + if (diff >= min_t(unsigned int, x->props.replay_window, + sizeof(x->replay.bitmap) * 8)) { x->stats.replay_window++; return -EINVAL; } diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 9678995..816e369 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -272,9 +272,8 @@ static int attach_encap_tmpl(struct xfrm_encap_tmpl **encapp, struct rtattr *u_a } -static inline int xfrm_user_sec_ctx_size(struct xfrm_policy *xp) +static inline int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx) { - struct xfrm_sec_ctx *xfrm_ctx = xp->security; int len = 0; if (xfrm_ctx) { @@ -2025,7 +2024,7 @@ nlmsg_failure: return -1; } -static int inline xfrm_sa_len(struct xfrm_state *x) +static inline int xfrm_sa_len(struct xfrm_state *x) { int l = 0; if (x->aalg) @@ -2170,7 +2169,7 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt, len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire)); - len += RTA_SPACE(xfrm_user_sec_ctx_size(xp)); + len += RTA_SPACE(xfrm_user_sec_ctx_size(x->security)); #ifdef CONFIG_XFRM_SUB_POLICY len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type)); #endif @@ -2280,7 +2279,7 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_eve len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire)); - len += RTA_SPACE(xfrm_user_sec_ctx_size(xp)); + len += RTA_SPACE(xfrm_user_sec_ctx_size(xp->security)); #ifdef CONFIG_XFRM_SUB_POLICY len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type)); #endif |
