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author | glebius <glebius@FreeBSD.org> | 2012-09-14 11:51:49 +0000 |
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committer | glebius <glebius@FreeBSD.org> | 2012-09-14 11:51:49 +0000 |
commit | 0ccf4838d7a8b4da2c3beaac7ea1fd977aa0ed11 (patch) | |
tree | ec60da6e90cde2e87aa91ac9450c84ce3446233a /sys/contrib/pf/net/if_pflog.c | |
parent | f99fc207edf21e7c05c1147864077ce3fe1f3e2c (diff) | |
download | FreeBSD-src-0ccf4838d7a8b4da2c3beaac7ea1fd977aa0ed11.zip FreeBSD-src-0ccf4838d7a8b4da2c3beaac7ea1fd977aa0ed11.tar.gz |
o Create directory sys/netpfil, where all packet filters should
reside, and move there ipfw(4) and pf(4).
o Move most modified parts of pf out of contrib.
Actual movements:
sys/contrib/pf/net/*.c -> sys/netpfil/pf/
sys/contrib/pf/net/*.h -> sys/net/
contrib/pf/pfctl/*.c -> sbin/pfctl
contrib/pf/pfctl/*.h -> sbin/pfctl
contrib/pf/pfctl/pfctl.8 -> sbin/pfctl
contrib/pf/pfctl/*.4 -> share/man/man4
contrib/pf/pfctl/*.5 -> share/man/man5
sys/netinet/ipfw -> sys/netpfil/ipfw
The arguable movement is pf/net/*.h -> sys/net. There are
future plans to refactor pf includes, so I decided not to
break things twice.
Not modified bits of pf left in contrib: authpf, ftp-proxy,
tftp-proxy, pflogd.
The ipfw(4) movement is planned to be merged to stable/9,
to make head and stable match.
Discussed with: bz, luigi
Diffstat (limited to 'sys/contrib/pf/net/if_pflog.c')
-rw-r--r-- | sys/contrib/pf/net/if_pflog.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/sys/contrib/pf/net/if_pflog.c b/sys/contrib/pf/net/if_pflog.c deleted file mode 100644 index 20feea2..0000000 --- a/sys/contrib/pf/net/if_pflog.c +++ /dev/null @@ -1,290 +0,0 @@ -/* $OpenBSD: if_pflog.c,v 1.26 2007/10/18 21:58:18 mpf Exp $ */ -/* - * The authors of this code are John Ioannidis (ji@tla.org), - * Angelos D. Keromytis (kermit@csd.uch.gr) and - * Niels Provos (provos@physnet.uni-hamburg.de). - * - * This code was written by John Ioannidis for BSD/OS in Athens, Greece, - * in November 1995. - * - * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, - * by Angelos D. Keromytis. - * - * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis - * and Niels Provos. - * - * Copyright (C) 1995, 1996, 1997, 1998 by John Ioannidis, Angelos D. Keromytis - * and Niels Provos. - * Copyright (c) 2001, Angelos D. Keromytis, Niels Provos. - * - * Permission to use, copy, and modify this software with or without fee - * is hereby granted, provided that this entire notice is included in - * all copies of any software which is or includes a copy or - * modification of this software. - * You may use this code under the GNU public license if you so wish. Please - * contribute changes back to the authors under this freer than GPL license - * so that we may further the use of strong encryption without limitations to - * all. - * - * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY - * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE - * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR - * PURPOSE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_inet.h" -#include "opt_inet6.h" -#include "opt_bpf.h" -#include "opt_pf.h" - -#include <sys/param.h> -#include <sys/kernel.h> -#include <sys/mbuf.h> -#include <sys/module.h> -#include <sys/proc.h> -#include <sys/socket.h> -#include <sys/sockio.h> - -#include <net/bpf.h> -#include <net/if.h> -#include <net/if_clone.h> -#include <net/if_pflog.h> -#include <net/if_types.h> -#include <net/pfvar.h> - -#if defined(INET) || defined(INET6) -#include <netinet/in.h> -#endif -#ifdef INET -#include <netinet/in_var.h> -#include <netinet/ip.h> -#endif - -#ifdef INET6 -#include <netinet6/in6_var.h> -#include <netinet6/nd6.h> -#endif /* INET6 */ - -#ifdef INET -#include <machine/in_cksum.h> -#endif /* INET */ - -#define PFLOGMTU (32768 + MHLEN + MLEN) - -#ifdef PFLOGDEBUG -#define DPRINTF(x) do { if (pflogdebug) printf x ; } while (0) -#else -#define DPRINTF(x) -#endif - -static int pflogoutput(struct ifnet *, struct mbuf *, struct sockaddr *, - struct route *); -static void pflogattach(int); -static int pflogioctl(struct ifnet *, u_long, caddr_t); -static void pflogstart(struct ifnet *); -static int pflog_clone_create(struct if_clone *, int, caddr_t); -static void pflog_clone_destroy(struct ifnet *); - -IFC_SIMPLE_DECLARE(pflog, 1); - -struct ifnet *pflogifs[PFLOGIFS_MAX]; /* for fast access */ - -static void -pflogattach(int npflog) -{ - int i; - for (i = 0; i < PFLOGIFS_MAX; i++) - pflogifs[i] = NULL; - if_clone_attach(&pflog_cloner); -} - -static int -pflog_clone_create(struct if_clone *ifc, int unit, caddr_t param) -{ - struct ifnet *ifp; - - if (unit >= PFLOGIFS_MAX) - return (EINVAL); - - ifp = if_alloc(IFT_PFLOG); - if (ifp == NULL) { - return (ENOSPC); - } - if_initname(ifp, ifc->ifc_name, unit); - ifp->if_mtu = PFLOGMTU; - ifp->if_ioctl = pflogioctl; - ifp->if_output = pflogoutput; - ifp->if_start = pflogstart; - ifp->if_snd.ifq_maxlen = ifqmaxlen; - ifp->if_hdrlen = PFLOG_HDRLEN; - if_attach(ifp); - - bpfattach(ifp, DLT_PFLOG, PFLOG_HDRLEN); - - pflogifs[unit] = ifp; - - return (0); -} - -static void -pflog_clone_destroy(struct ifnet *ifp) -{ - int i; - - for (i = 0; i < PFLOGIFS_MAX; i++) - if (pflogifs[i] == ifp) - pflogifs[i] = NULL; - - bpfdetach(ifp); - if_detach(ifp); - if_free(ifp); -} - -/* - * Start output on the pflog interface. - */ -static void -pflogstart(struct ifnet *ifp) -{ - struct mbuf *m; - - for (;;) { - IF_LOCK(&ifp->if_snd); - _IF_DROP(&ifp->if_snd); - _IF_DEQUEUE(&ifp->if_snd, m); - IF_UNLOCK(&ifp->if_snd); - - if (m == NULL) - return; - else - m_freem(m); - } -} - -static int -pflogoutput(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, - struct route *rt) -{ - m_freem(m); - return (0); -} - -/* ARGSUSED */ -static int -pflogioctl(struct ifnet *ifp, u_long cmd, caddr_t data) -{ - switch (cmd) { - case SIOCSIFFLAGS: - if (ifp->if_flags & IFF_UP) - ifp->if_drv_flags |= IFF_DRV_RUNNING; - else - ifp->if_drv_flags &= ~IFF_DRV_RUNNING; - break; - default: - return (ENOTTY); - } - - return (0); -} - -static int -pflog_packet(struct pfi_kif *kif, struct mbuf *m, sa_family_t af, u_int8_t dir, - u_int8_t reason, struct pf_rule *rm, struct pf_rule *am, - struct pf_ruleset *ruleset, struct pf_pdesc *pd, int lookupsafe) -{ - struct ifnet *ifn; - struct pfloghdr hdr; - - if (kif == NULL || m == NULL || rm == NULL || pd == NULL) - return ( 1); - - if ((ifn = pflogifs[rm->logif]) == NULL || !ifn->if_bpf) - return (0); - - bzero(&hdr, sizeof(hdr)); - hdr.length = PFLOG_REAL_HDRLEN; - hdr.af = af; - hdr.action = rm->action; - hdr.reason = reason; - memcpy(hdr.ifname, kif->pfik_name, sizeof(hdr.ifname)); - - if (am == NULL) { - hdr.rulenr = htonl(rm->nr); - hdr.subrulenr = 1; - } else { - hdr.rulenr = htonl(am->nr); - hdr.subrulenr = htonl(rm->nr); - if (ruleset != NULL && ruleset->anchor != NULL) - strlcpy(hdr.ruleset, ruleset->anchor->name, - sizeof(hdr.ruleset)); - } - /* - * XXXGL: we avoid pf_socket_lookup() when we are holding - * state lock, since this leads to unsafe LOR. - * These conditions are very very rare, however. - */ - if (rm->log & PF_LOG_SOCKET_LOOKUP && !pd->lookup.done && lookupsafe) - pd->lookup.done = pf_socket_lookup(dir, pd, m); - if (pd->lookup.done > 0) - hdr.uid = pd->lookup.uid; - else - hdr.uid = UID_MAX; - hdr.pid = NO_PID; - hdr.rule_uid = rm->cuid; - hdr.rule_pid = rm->cpid; - hdr.dir = dir; - -#ifdef INET - if (af == AF_INET && dir == PF_OUT) { - struct ip *ip; - - ip = mtod(m, struct ip *); - ip->ip_sum = 0; - ip->ip_sum = in_cksum(m, ip->ip_hl << 2); - } -#endif /* INET */ - - ifn->if_opackets++; - ifn->if_obytes += m->m_pkthdr.len; - BPF_MTAP2(ifn, &hdr, PFLOG_HDRLEN, m); - - return (0); -} - -static int -pflog_modevent(module_t mod, int type, void *data) -{ - int error = 0; - - switch (type) { - case MOD_LOAD: - pflogattach(1); - PF_RULES_WLOCK(); - pflog_packet_ptr = pflog_packet; - PF_RULES_WUNLOCK(); - break; - case MOD_UNLOAD: - PF_RULES_WLOCK(); - pflog_packet_ptr = NULL; - PF_RULES_WUNLOCK(); - if_clone_detach(&pflog_cloner); - break; - default: - error = EINVAL; - break; - } - - return error; -} - -static moduledata_t pflog_mod = { "pflog", pflog_modevent, 0 }; - -#define PFLOG_MODVER 1 - -DECLARE_MODULE(pflog, pflog_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); -MODULE_VERSION(pflog, PFLOG_MODVER); -MODULE_DEPEND(pflog, pf, PF_MODVER, PF_MODVER, PF_MODVER); |