diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 2 | ||||
| -rw-r--r-- | net/core/fib_rules.c | 1 | ||||
| -rw-r--r-- | net/core/flow.c | 42 | ||||
| -rw-r--r-- | net/core/neighbour.c | 12 | ||||
| -rw-r--r-- | net/core/netpoll.c | 8 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 2 | ||||
| -rw-r--r-- | net/core/scm.c | 3 | ||||
| -rw-r--r-- | net/core/skbuff.c | 3 | ||||
| -rw-r--r-- | net/core/sock.c | 2 | ||||
| -rw-r--r-- | net/core/utils.c | 116 |
10 files changed, 43 insertions, 148 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 4d891be..81c426a 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3502,8 +3502,6 @@ static int __init net_dev_init(void) BUG_ON(!dev_boot_phase); - net_random_init(); - if (dev_proc_init()) goto out; diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index a99d87d..6b0e63c 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -8,7 +8,6 @@ * Authors: Thomas Graf <tgraf@suug.ch> */ -#include <linux/config.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/list.h> diff --git a/net/core/flow.c b/net/core/flow.c index f23e7e3..b16d31a 100644 --- a/net/core/flow.c +++ b/net/core/flow.c @@ -85,6 +85,14 @@ static void flow_cache_new_hashrnd(unsigned long arg) add_timer(&flow_hash_rnd_timer); } +static void flow_entry_kill(int cpu, struct flow_cache_entry *fle) +{ + if (fle->object) + atomic_dec(fle->object_ref); + kmem_cache_free(flow_cachep, fle); + flow_count(cpu)--; +} + static void __flow_cache_shrink(int cpu, int shrink_to) { struct flow_cache_entry *fle, **flp; @@ -100,10 +108,7 @@ static void __flow_cache_shrink(int cpu, int shrink_to) } while ((fle = *flp) != NULL) { *flp = fle->next; - if (fle->object) - atomic_dec(fle->object_ref); - kmem_cache_free(flow_cachep, fle); - flow_count(cpu)--; + flow_entry_kill(cpu, fle); } } } @@ -220,24 +225,33 @@ void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir, nocache: { + int err; void *obj; atomic_t *obj_ref; - resolver(key, family, dir, &obj, &obj_ref); + err = resolver(key, family, dir, &obj, &obj_ref); if (fle) { - fle->genid = atomic_read(&flow_cache_genid); - - if (fle->object) - atomic_dec(fle->object_ref); - - fle->object = obj; - fle->object_ref = obj_ref; - if (obj) - atomic_inc(fle->object_ref); + if (err) { + /* Force security policy check on next lookup */ + *head = fle->next; + flow_entry_kill(cpu, fle); + } else { + fle->genid = atomic_read(&flow_cache_genid); + + if (fle->object) + atomic_dec(fle->object_ref); + + fle->object = obj; + fle->object_ref = obj_ref; + if (obj) + atomic_inc(fle->object_ref); + } } local_bh_enable(); + if (err) + obj = ERR_PTR(err); return obj; } } diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 8ce8c47..b4b4783 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -344,12 +344,12 @@ struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey, { struct neighbour *n; int key_len = tbl->key_len; - u32 hash_val = tbl->hash(pkey, dev) & tbl->hash_mask; + u32 hash_val = tbl->hash(pkey, dev); NEIGH_CACHE_STAT_INC(tbl, lookups); read_lock_bh(&tbl->lock); - for (n = tbl->hash_buckets[hash_val]; n; n = n->next) { + for (n = tbl->hash_buckets[hash_val & tbl->hash_mask]; n; n = n->next) { if (dev == n->dev && !memcmp(n->primary_key, pkey, key_len)) { neigh_hold(n); NEIGH_CACHE_STAT_INC(tbl, hits); @@ -364,12 +364,12 @@ struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, const void *pkey) { struct neighbour *n; int key_len = tbl->key_len; - u32 hash_val = tbl->hash(pkey, NULL) & tbl->hash_mask; + u32 hash_val = tbl->hash(pkey, NULL); NEIGH_CACHE_STAT_INC(tbl, lookups); read_lock_bh(&tbl->lock); - for (n = tbl->hash_buckets[hash_val]; n; n = n->next) { + for (n = tbl->hash_buckets[hash_val & tbl->hash_mask]; n; n = n->next) { if (!memcmp(n->primary_key, pkey, key_len)) { neigh_hold(n); NEIGH_CACHE_STAT_INC(tbl, hits); @@ -1998,12 +1998,12 @@ static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb, int rc, h, s_h = cb->args[1]; int idx, s_idx = idx = cb->args[2]; + read_lock_bh(&tbl->lock); for (h = 0; h <= tbl->hash_mask; h++) { if (h < s_h) continue; if (h > s_h) s_idx = 0; - read_lock_bh(&tbl->lock); for (n = tbl->hash_buckets[h], idx = 0; n; n = n->next, idx++) { if (idx < s_idx) continue; @@ -2016,8 +2016,8 @@ static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb, goto out; } } - read_unlock_bh(&tbl->lock); } + read_unlock_bh(&tbl->lock); rc = skb->len; out: cb->args[1] = h; diff --git a/net/core/netpoll.c b/net/core/netpoll.c index ead5920..9308af0 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -335,13 +335,13 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len) memcpy(skb->data, msg, len); skb->len += len; - udph = (struct udphdr *) skb_push(skb, sizeof(*udph)); + skb->h.uh = udph = (struct udphdr *) skb_push(skb, sizeof(*udph)); udph->source = htons(np->local_port); udph->dest = htons(np->remote_port); udph->len = htons(udp_len); udph->check = 0; - iph = (struct iphdr *)skb_push(skb, sizeof(*iph)); + skb->nh.iph = iph = (struct iphdr *)skb_push(skb, sizeof(*iph)); /* iph->version = 4; iph->ihl = 5; */ put_unaligned(0x45, (unsigned char *)iph); @@ -357,8 +357,8 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len) iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); eth = (struct ethhdr *) skb_push(skb, ETH_HLEN); - - eth->h_proto = htons(ETH_P_IP); + skb->mac.raw = skb->data; + skb->protocol = eth->h_proto = htons(ETH_P_IP); memcpy(eth->h_source, np->local_mac, 6); memcpy(eth->h_dest, np->remote_mac, 6); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 221e403..02f3c79 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -602,7 +602,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) goto errout; } - err = rtnl_unicast(skb, NETLINK_CB(skb).pid); + err = rtnl_unicast(nskb, NETLINK_CB(skb).pid); errout: kfree(iw_buf); dev_put(dev); diff --git a/net/core/scm.c b/net/core/scm.c index 649d01e..271cf06 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -245,8 +245,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) if (i > 0) { int cmlen = CMSG_LEN(i*sizeof(int)); - if (!err) - err = put_user(SOL_SOCKET, &cm->cmsg_level); + err = put_user(SOL_SOCKET, &cm->cmsg_level); if (!err) err = put_user(SCM_RIGHTS, &cm->cmsg_type); if (!err) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index c448c7f..3c23760 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -156,7 +156,8 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask, /* Get the DATA. Size must match skb_add_mtu(). */ size = SKB_DATA_ALIGN(size); - data = ____kmalloc(size + sizeof(struct skb_shared_info), gfp_mask); + data = kmalloc_track_caller(size + sizeof(struct skb_shared_info), + gfp_mask); if (!data) goto nodata; diff --git a/net/core/sock.c b/net/core/sock.c index b77e155..d472db4 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -823,7 +823,7 @@ static void inline sock_lock_init(struct sock *sk) af_family_slock_key_strings[sk->sk_family]); lockdep_init_map(&sk->sk_lock.dep_map, af_family_key_strings[sk->sk_family], - af_family_keys + sk->sk_family); + af_family_keys + sk->sk_family, 0); } /** diff --git a/net/core/utils.c b/net/core/utils.c index 94c5d76..d93fe64 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -30,119 +30,6 @@ #include <asm/system.h> #include <asm/uaccess.h> -/* - This is a maximally equidistributed combined Tausworthe generator - based on code from GNU Scientific Library 1.5 (30 Jun 2004) - - x_n = (s1_n ^ s2_n ^ s3_n) - - s1_{n+1} = (((s1_n & 4294967294) <<12) ^ (((s1_n <<13) ^ s1_n) >>19)) - s2_{n+1} = (((s2_n & 4294967288) << 4) ^ (((s2_n << 2) ^ s2_n) >>25)) - s3_{n+1} = (((s3_n & 4294967280) <<17) ^ (((s3_n << 3) ^ s3_n) >>11)) - - The period of this generator is about 2^88. - - From: P. L'Ecuyer, "Maximally Equidistributed Combined Tausworthe - Generators", Mathematics of Computation, 65, 213 (1996), 203--213. - - This is available on the net from L'Ecuyer's home page, - - http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps - ftp://ftp.iro.umontreal.ca/pub/simulation/lecuyer/papers/tausme.ps - - There is an erratum in the paper "Tables of Maximally - Equidistributed Combined LFSR Generators", Mathematics of - Computation, 68, 225 (1999), 261--269: - http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps - - ... the k_j most significant bits of z_j must be non- - zero, for each j. (Note: this restriction also applies to the - computer code given in [4], but was mistakenly not mentioned in - that paper.) - - This affects the seeding procedure by imposing the requirement - s1 > 1, s2 > 7, s3 > 15. - -*/ -struct nrnd_state { - u32 s1, s2, s3; -}; - -static DEFINE_PER_CPU(struct nrnd_state, net_rand_state); - -static u32 __net_random(struct nrnd_state *state) -{ -#define TAUSWORTHE(s,a,b,c,d) ((s&c)<<d) ^ (((s <<a) ^ s)>>b) - - state->s1 = TAUSWORTHE(state->s1, 13, 19, 4294967294UL, 12); - state->s2 = TAUSWORTHE(state->s2, 2, 25, 4294967288UL, 4); - state->s3 = TAUSWORTHE(state->s3, 3, 11, 4294967280UL, 17); - - return (state->s1 ^ state->s2 ^ state->s3); -} - -static void __net_srandom(struct nrnd_state *state, unsigned long s) -{ - if (s == 0) - s = 1; /* default seed is 1 */ - -#define LCG(n) (69069 * n) - state->s1 = LCG(s); - state->s2 = LCG(state->s1); - state->s3 = LCG(state->s2); - - /* "warm it up" */ - __net_random(state); - __net_random(state); - __net_random(state); - __net_random(state); - __net_random(state); - __net_random(state); -} - - -unsigned long net_random(void) -{ - unsigned long r; - struct nrnd_state *state = &get_cpu_var(net_rand_state); - r = __net_random(state); - put_cpu_var(state); - return r; -} - - -void net_srandom(unsigned long entropy) -{ - struct nrnd_state *state = &get_cpu_var(net_rand_state); - __net_srandom(state, state->s1^entropy); - put_cpu_var(state); -} - -void __init net_random_init(void) -{ - int i; - - for_each_possible_cpu(i) { - struct nrnd_state *state = &per_cpu(net_rand_state,i); - __net_srandom(state, i+jiffies); - } -} - -static int net_random_reseed(void) -{ - int i; - unsigned long seed; - - for_each_possible_cpu(i) { - struct nrnd_state *state = &per_cpu(net_rand_state,i); - - get_random_bytes(&seed, sizeof(seed)); - __net_srandom(state, seed); - } - return 0; -} -late_initcall(net_random_reseed); - int net_msg_cost = 5*HZ; int net_msg_burst = 10; @@ -153,10 +40,7 @@ int net_ratelimit(void) { return __printk_ratelimit(net_msg_cost, net_msg_burst); } - -EXPORT_SYMBOL(net_random); EXPORT_SYMBOL(net_ratelimit); -EXPORT_SYMBOL(net_srandom); /* * Convert an ASCII string to binary IP. |
