diff options
Diffstat (limited to 'freebsd/sys/netinet/ipfw/ip_fw_log.c')
| -rw-r--r-- | freebsd/sys/netinet/ipfw/ip_fw_log.c | 456 |
1 files changed, 0 insertions, 456 deletions
diff --git a/freebsd/sys/netinet/ipfw/ip_fw_log.c b/freebsd/sys/netinet/ipfw/ip_fw_log.c deleted file mode 100644 index 18bd0e43..00000000 --- a/freebsd/sys/netinet/ipfw/ip_fw_log.c +++ /dev/null @@ -1,456 +0,0 @@ -#include <machine/rtems-bsd-kernel-space.h> - -/*- - * Copyright (c) 2002-2009 Luigi Rizzo, Universita` di Pisa - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * Logging support for ipfw - */ - -#include <rtems/bsd/local/opt_ipfw.h> -#include <rtems/bsd/local/opt_inet.h> -#ifndef INET -#error IPFIREWALL requires INET. -#endif /* INET */ -#include <rtems/bsd/local/opt_inet6.h> - -#include <rtems/bsd/sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/kernel.h> -#include <sys/socket.h> -#include <sys/sysctl.h> -#include <sys/syslog.h> -#include <net/ethernet.h> /* for ETHERTYPE_IP */ -#include <net/if.h> -#include <net/vnet.h> -#include <net/if_types.h> /* for IFT_ETHER */ -#include <net/bpf.h> /* for BPF */ - -#include <netinet/in.h> -#include <netinet/ip.h> -#include <netinet/ip_icmp.h> -#include <netinet/ip_var.h> -#include <netinet/ip_fw.h> -#include <netinet/ipfw/ip_fw_private.h> -#include <netinet/tcp_var.h> -#include <netinet/udp.h> - -#include <netinet/ip6.h> -#include <netinet/icmp6.h> -#ifdef INET6 -#include <netinet6/in6_var.h> /* ip6_sprintf() */ -#endif - -#ifdef MAC -#include <security/mac/mac_framework.h> -#endif - -/* - * L3HDR maps an ipv4 pointer into a layer3 header pointer of type T - * Other macros just cast void * into the appropriate type - */ -#define L3HDR(T, ip) ((T *)((u_int32_t *)(ip) + (ip)->ip_hl)) -#define TCP(p) ((struct tcphdr *)(p)) -#define SCTP(p) ((struct sctphdr *)(p)) -#define UDP(p) ((struct udphdr *)(p)) -#define ICMP(p) ((struct icmphdr *)(p)) -#define ICMP6(p) ((struct icmp6_hdr *)(p)) - -#define SNPARGS(buf, len) buf + len, sizeof(buf) > len ? sizeof(buf) - len : 0 -#define SNP(buf) buf, sizeof(buf) - -#ifdef WITHOUT_BPF -void -ipfw_log_bpf(int onoff) -{ -} -#else /* !WITHOUT_BPF */ -static struct ifnet *log_if; /* hook to attach to bpf */ - -/* we use this dummy function for all ifnet callbacks */ -static int -log_dummy(struct ifnet *ifp, u_long cmd, caddr_t addr) -{ - return EINVAL; -} - -static int -ipfw_log_output(struct ifnet *ifp, struct mbuf *m, - struct sockaddr *dst, struct route *ro) -{ - if (m != NULL) - m_freem(m); - return EINVAL; -} - -static void -ipfw_log_start(struct ifnet* ifp) -{ - panic("ipfw_log_start() must not be called"); -} - -static const u_char ipfwbroadcastaddr[6] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - -void -ipfw_log_bpf(int onoff) -{ - struct ifnet *ifp; - - if (onoff) { - if (log_if) - return; - ifp = if_alloc(IFT_ETHER); - if (ifp == NULL) - return; - if_initname(ifp, "ipfw", 0); - ifp->if_mtu = 65536; - ifp->if_flags = IFF_UP | IFF_SIMPLEX | IFF_MULTICAST; - ifp->if_init = (void *)log_dummy; - ifp->if_ioctl = log_dummy; - ifp->if_start = ipfw_log_start; - ifp->if_output = ipfw_log_output; - ifp->if_addrlen = 6; - ifp->if_hdrlen = 14; - if_attach(ifp); - ifp->if_broadcastaddr = ipfwbroadcastaddr; - ifp->if_baudrate = IF_Mbps(10); - bpfattach(ifp, DLT_EN10MB, 14); - log_if = ifp; - } else { - if (log_if) { - ether_ifdetach(log_if); - if_free(log_if); - } - log_if = NULL; - } -} -#endif /* !WITHOUT_BPF */ - -/* - * We enter here when we have a rule with O_LOG. - * XXX this function alone takes about 2Kbytes of code! - */ -void -ipfw_log(struct ip_fw *f, u_int hlen, struct ip_fw_args *args, - struct mbuf *m, struct ifnet *oif, u_short offset, uint32_t tablearg, - struct ip *ip) -{ - char *action; - int limit_reached = 0; - char action2[40], proto[128], fragment[32]; - - if (V_fw_verbose == 0) { -#ifndef WITHOUT_BPF - - if (log_if == NULL || log_if->if_bpf == NULL) - return; - - if (args->eh) /* layer2, use orig hdr */ - BPF_MTAP2(log_if, args->eh, ETHER_HDR_LEN, m); - else - /* Add fake header. Later we will store - * more info in the header. - */ - BPF_MTAP2(log_if, "DDDDDDSSSSSS\x08\x00", ETHER_HDR_LEN, m); -#endif /* !WITHOUT_BPF */ - return; - } - /* the old 'log' function */ - fragment[0] = '\0'; - proto[0] = '\0'; - - if (f == NULL) { /* bogus pkt */ - if (V_verbose_limit != 0 && V_norule_counter >= V_verbose_limit) - return; - V_norule_counter++; - if (V_norule_counter == V_verbose_limit) - limit_reached = V_verbose_limit; - action = "Refuse"; - } else { /* O_LOG is the first action, find the real one */ - ipfw_insn *cmd = ACTION_PTR(f); - ipfw_insn_log *l = (ipfw_insn_log *)cmd; - - if (l->max_log != 0 && l->log_left == 0) - return; - l->log_left--; - if (l->log_left == 0) - limit_reached = l->max_log; - cmd += F_LEN(cmd); /* point to first action */ - if (cmd->opcode == O_ALTQ) { - ipfw_insn_altq *altq = (ipfw_insn_altq *)cmd; - - snprintf(SNPARGS(action2, 0), "Altq %d", - altq->qid); - cmd += F_LEN(cmd); - } - if (cmd->opcode == O_PROB) - cmd += F_LEN(cmd); - - if (cmd->opcode == O_TAG) - cmd += F_LEN(cmd); - - action = action2; - switch (cmd->opcode) { - case O_DENY: - action = "Deny"; - break; - - case O_REJECT: - if (cmd->arg1==ICMP_REJECT_RST) - action = "Reset"; - else if (cmd->arg1==ICMP_UNREACH_HOST) - action = "Reject"; - else - snprintf(SNPARGS(action2, 0), "Unreach %d", - cmd->arg1); - break; - - case O_UNREACH6: - if (cmd->arg1==ICMP6_UNREACH_RST) - action = "Reset"; - else - snprintf(SNPARGS(action2, 0), "Unreach %d", - cmd->arg1); - break; - - case O_ACCEPT: - action = "Accept"; - break; - case O_COUNT: - action = "Count"; - break; - case O_DIVERT: - snprintf(SNPARGS(action2, 0), "Divert %d", - cmd->arg1); - break; - case O_TEE: - snprintf(SNPARGS(action2, 0), "Tee %d", - cmd->arg1); - break; - case O_SETFIB: - snprintf(SNPARGS(action2, 0), "SetFib %d", - cmd->arg1); - break; - case O_SKIPTO: - snprintf(SNPARGS(action2, 0), "SkipTo %d", - cmd->arg1); - break; - case O_PIPE: - snprintf(SNPARGS(action2, 0), "Pipe %d", - cmd->arg1); - break; - case O_QUEUE: - snprintf(SNPARGS(action2, 0), "Queue %d", - cmd->arg1); - break; - case O_FORWARD_IP: { - ipfw_insn_sa *sa = (ipfw_insn_sa *)cmd; - int len; - struct in_addr dummyaddr; - if (sa->sa.sin_addr.s_addr == INADDR_ANY) - dummyaddr.s_addr = htonl(tablearg); - else - dummyaddr.s_addr = sa->sa.sin_addr.s_addr; - - len = snprintf(SNPARGS(action2, 0), "Forward to %s", - inet_ntoa(dummyaddr)); - - if (sa->sa.sin_port) - snprintf(SNPARGS(action2, len), ":%d", - sa->sa.sin_port); - } - break; - case O_NETGRAPH: - snprintf(SNPARGS(action2, 0), "Netgraph %d", - cmd->arg1); - break; - case O_NGTEE: - snprintf(SNPARGS(action2, 0), "Ngtee %d", - cmd->arg1); - break; - case O_NAT: - action = "Nat"; - break; - case O_REASS: - action = "Reass"; - break; - case O_CALLRETURN: - if (cmd->len & F_NOT) - action = "Return"; - else - snprintf(SNPARGS(action2, 0), "Call %d", - cmd->arg1); - break; - default: - action = "UNKNOWN"; - break; - } - } - - if (hlen == 0) { /* non-ip */ - snprintf(SNPARGS(proto, 0), "MAC"); - - } else { - int len; -#ifdef INET6 - char src[INET6_ADDRSTRLEN + 2], dst[INET6_ADDRSTRLEN + 2]; -#else - char src[INET_ADDRSTRLEN], dst[INET_ADDRSTRLEN]; -#endif - struct icmphdr *icmp; - struct tcphdr *tcp; - struct udphdr *udp; -#ifdef INET6 - struct ip6_hdr *ip6 = NULL; - struct icmp6_hdr *icmp6; - u_short ip6f_mf; -#endif - src[0] = '\0'; - dst[0] = '\0'; -#ifdef INET6 - ip6f_mf = offset & IP6F_MORE_FRAG; - offset &= IP6F_OFF_MASK; - - if (IS_IP6_FLOW_ID(&(args->f_id))) { - char ip6buf[INET6_ADDRSTRLEN]; - snprintf(src, sizeof(src), "[%s]", - ip6_sprintf(ip6buf, &args->f_id.src_ip6)); - snprintf(dst, sizeof(dst), "[%s]", - ip6_sprintf(ip6buf, &args->f_id.dst_ip6)); - - ip6 = (struct ip6_hdr *)ip; - tcp = (struct tcphdr *)(((char *)ip) + hlen); - udp = (struct udphdr *)(((char *)ip) + hlen); - } else -#endif - { - tcp = L3HDR(struct tcphdr, ip); - udp = L3HDR(struct udphdr, ip); - - inet_ntoa_r(ip->ip_src, src); - inet_ntoa_r(ip->ip_dst, dst); - } - - switch (args->f_id.proto) { - case IPPROTO_TCP: - len = snprintf(SNPARGS(proto, 0), "TCP %s", src); - if (offset == 0) - snprintf(SNPARGS(proto, len), ":%d %s:%d", - ntohs(tcp->th_sport), - dst, - ntohs(tcp->th_dport)); - else - snprintf(SNPARGS(proto, len), " %s", dst); - break; - - case IPPROTO_UDP: - len = snprintf(SNPARGS(proto, 0), "UDP %s", src); - if (offset == 0) - snprintf(SNPARGS(proto, len), ":%d %s:%d", - ntohs(udp->uh_sport), - dst, - ntohs(udp->uh_dport)); - else - snprintf(SNPARGS(proto, len), " %s", dst); - break; - - case IPPROTO_ICMP: - icmp = L3HDR(struct icmphdr, ip); - if (offset == 0) - len = snprintf(SNPARGS(proto, 0), - "ICMP:%u.%u ", - icmp->icmp_type, icmp->icmp_code); - else - len = snprintf(SNPARGS(proto, 0), "ICMP "); - len += snprintf(SNPARGS(proto, len), "%s", src); - snprintf(SNPARGS(proto, len), " %s", dst); - break; -#ifdef INET6 - case IPPROTO_ICMPV6: - icmp6 = (struct icmp6_hdr *)(((char *)ip) + hlen); - if (offset == 0) - len = snprintf(SNPARGS(proto, 0), - "ICMPv6:%u.%u ", - icmp6->icmp6_type, icmp6->icmp6_code); - else - len = snprintf(SNPARGS(proto, 0), "ICMPv6 "); - len += snprintf(SNPARGS(proto, len), "%s", src); - snprintf(SNPARGS(proto, len), " %s", dst); - break; -#endif - default: - len = snprintf(SNPARGS(proto, 0), "P:%d %s", - args->f_id.proto, src); - snprintf(SNPARGS(proto, len), " %s", dst); - break; - } - -#ifdef INET6 - if (IS_IP6_FLOW_ID(&(args->f_id))) { - if (offset & (IP6F_OFF_MASK | IP6F_MORE_FRAG)) - snprintf(SNPARGS(fragment, 0), - " (frag %08x:%d@%d%s)", - args->f_id.extra, - ntohs(ip6->ip6_plen) - hlen, - ntohs(offset) << 3, ip6f_mf ? "+" : ""); - } else -#endif - { - int ipoff, iplen; - ipoff = ntohs(ip->ip_off); - iplen = ntohs(ip->ip_len); - if (ipoff & (IP_MF | IP_OFFMASK)) - snprintf(SNPARGS(fragment, 0), - " (frag %d:%d@%d%s)", - ntohs(ip->ip_id), iplen - (ip->ip_hl << 2), - offset << 3, - (ipoff & IP_MF) ? "+" : ""); - } - } -#ifdef __FreeBSD__ - if (oif || m->m_pkthdr.rcvif) - log(LOG_SECURITY | LOG_INFO, - "ipfw: %d %s %s %s via %s%s\n", - f ? f->rulenum : -1, - action, proto, oif ? "out" : "in", - oif ? oif->if_xname : m->m_pkthdr.rcvif->if_xname, - fragment); - else -#endif - log(LOG_SECURITY | LOG_INFO, - "ipfw: %d %s %s [no if info]%s\n", - f ? f->rulenum : -1, - action, proto, fragment); - if (limit_reached) - log(LOG_SECURITY | LOG_NOTICE, - "ipfw: limit %d reached on entry %d\n", - limit_reached, f ? f->rulenum : -1); -} -/* end of file */ |