int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) { FILE *fp = (FILE*)arg; struct rtmsg *r = NLMSG_DATA(n); int len = n->nlmsg_len; struct rtattr * tb[RTA_MAX+1]; char abuf[256]; inet_prefix dst; inet_prefix src; inet_prefix prefsrc; inet_prefix via; int host_len = -1; SPRINT_BUF(b1); if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) { fprintf(stderr, "Not a route: %08x %08x %08x\n", n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); return 0; } if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE) return 0; len -= NLMSG_LENGTH(sizeof(*r)); if (len < 0) { fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); return -1; } if (r->rtm_family == AF_INET6) host_len = 128; else if (r->rtm_family == AF_INET) host_len = 32; else if (r->rtm_family == AF_DECnet) host_len = 16; else if (r->rtm_family == AF_IPX) host_len = 80; if (r->rtm_family == AF_INET6) { if (filter.tb) { if (filter.tb < 0) { if (!(r->rtm_flags&RTM_F_CLONED)) return 0; } else { if (r->rtm_flags&RTM_F_CLONED) return 0; if (filter.tb == RT_TABLE_LOCAL) { if (r->rtm_type != RTN_LOCAL) return 0; } else if (filter.tb == RT_TABLE_MAIN) { if (r->rtm_type == RTN_LOCAL) return 0; } else { return 0; } } } } else { if (filter.tb > 0 && filter.tb != r->rtm_table) return 0; } if ((filter.protocol^r->rtm_protocol)&filter.protocolmask) return 0; if ((filter.scope^r->rtm_scope)&filter.scopemask) return 0; if ((filter.type^r->rtm_type)&filter.typemask) return 0; if ((filter.tos^r->rtm_tos)&filter.tosmask) return 0; if (filter.rdst.family && (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) return 0; if (filter.mdst.family && (r->rtm_family != filter.mdst.family || (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) return 0; if (filter.rsrc.family && (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) return 0; if (filter.msrc.family && (r->rtm_family != filter.msrc.family || (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) return 0; if (filter.rvia.family && r->rtm_family != filter.rvia.family) return 0; if (filter.rprefsrc.family && r->rtm_family != filter.rprefsrc.family) return 0; parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); memset(&dst, 0, sizeof(dst)); dst.family = r->rtm_family; if (tb[RTA_DST]) memcpy(&dst.data, RTA_DATA(tb[RTA_DST]), (r->rtm_dst_len+7)/8); if (filter.rsrc.family || filter.msrc.family) { memset(&src, 0, sizeof(src)); src.family = r->rtm_family; if (tb[RTA_SRC]) memcpy(&src.data, RTA_DATA(tb[RTA_SRC]), (r->rtm_src_len+7)/8); } if (filter.rvia.bitlen>0) { memset(&via, 0, sizeof(via)); via.family = r->rtm_family; if (tb[RTA_GATEWAY]) memcpy(&via.data, RTA_DATA(tb[RTA_GATEWAY]), host_len); } if (filter.rprefsrc.bitlen>0) { memset(&prefsrc, 0, sizeof(prefsrc)); prefsrc.family = r->rtm_family; if (tb[RTA_PREFSRC]) memcpy(&prefsrc.data, RTA_DATA(tb[RTA_PREFSRC]), host_len); } if (filter.rdst.family && inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen)) return 0; if (filter.mdst.family && filter.mdst.bitlen >= 0 && inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len)) return 0; if (filter.rsrc.family && inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen)) return 0; if (filter.msrc.family && filter.msrc.bitlen >= 0 && inet_addr_match(&src, &filter.msrc, r->rtm_src_len)) return 0; if (filter.rvia.family && inet_addr_match(&via, &filter.rvia, filter.rvia.bitlen)) return 0; if (filter.rprefsrc.family && inet_addr_match(&prefsrc, &filter.rprefsrc, filter.rprefsrc.bitlen)) return 0; if (filter.realmmask) { __u32 realms = 0; if (tb[RTA_FLOW]) realms = *(__u32*)RTA_DATA(tb[RTA_FLOW]); if ((realms^filter.realm)&filter.realmmask) return 0; } if (filter.iifmask) { int iif = 0; if (tb[RTA_IIF]) iif = *(int*)RTA_DATA(tb[RTA_IIF]); if ((iif^filter.iif)&filter.iifmask) return 0; } if (filter.oifmask) { int oif = 0; if (tb[RTA_OIF]) oif = *(int*)RTA_DATA(tb[RTA_OIF]); if ((oif^filter.oif)&filter.oifmask) return 0; } if (filter.flushb && r->rtm_family == AF_INET6 && r->rtm_dst_len == 0 && r->rtm_type == RTN_UNREACHABLE && tb[RTA_PRIORITY] && *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1) return 0; if (filter.flushb) { struct nlmsghdr *fn; if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { if (flush_update()) return -1; } fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp)); memcpy(fn, n, n->nlmsg_len); fn->nlmsg_type = RTM_DELROUTE; fn->nlmsg_flags = NLM_F_REQUEST; fn->nlmsg_seq = ++rth.seq; filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb; filter.flushed++; if (show_stats < 2) return 0; } if (n->nlmsg_type == RTM_DELROUTE) fprintf(fp, "Deleted "); if (r->rtm_type != RTN_UNICAST && !filter.type) fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1))); if (tb[RTA_DST]) { if (r->rtm_dst_len != host_len) { fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_DST]), RTA_DATA(tb[RTA_DST]), abuf, sizeof(abuf)), r->rtm_dst_len ); } else { fprintf(fp, "%s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_DST]), RTA_DATA(tb[RTA_DST]), abuf, sizeof(abuf)) ); } } else if (r->rtm_dst_len) { fprintf(fp, "0/%d ", r->rtm_dst_len); } else { fprintf(fp, "default "); } if (tb[RTA_SRC]) { if (r->rtm_src_len != host_len) { fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_SRC]), RTA_DATA(tb[RTA_SRC]), abuf, sizeof(abuf)), r->rtm_src_len ); } else { fprintf(fp, "from %s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_SRC]), RTA_DATA(tb[RTA_SRC]), abuf, sizeof(abuf)) ); } } else if (r->rtm_src_len) { fprintf(fp, "from 0/%u ", r->rtm_src_len); } if (r->rtm_tos && filter.tosmask != -1) { SPRINT_BUF(b1); fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1))); } #if 0 if (tb[RTA_MP_ALGO]) { __u32 mp_alg = *(__u32*) RTA_DATA(tb[RTA_MP_ALGO]); if (mp_alg > IP_MP_ALG_NONE) { fprintf(fp, "mpath %s ", mp_alg < IP_MP_ALG_MAX ? mp_alg_names[mp_alg] : "unknown"); } } #endif if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) { fprintf(fp, "via %s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_GATEWAY]), RTA_DATA(tb[RTA_GATEWAY]), abuf, sizeof(abuf))); } if (tb[RTA_OIF] && filter.oifmask != -1) fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF]))); if (!(r->rtm_flags&RTM_F_CLONED)) { if (r->rtm_table != RT_TABLE_MAIN && !filter.tb) fprintf(fp, " table %s ", rtnl_rttable_n2a(r->rtm_table, b1, sizeof(b1))); if (r->rtm_protocol != RTPROT_BOOT && filter.protocolmask != -1) fprintf(fp, " proto %s ", rtnl_rtprot_n2a(r->rtm_protocol, b1, sizeof(b1))); if (r->rtm_scope != RT_SCOPE_UNIVERSE && filter.scopemask != -1) fprintf(fp, " scope %s ", rtnl_rtscope_n2a(r->rtm_scope, b1, sizeof(b1))); } if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { /* Do not use format_host(). It is our local addr and symbolic name will not be useful. */ fprintf(fp, " src %s ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_PREFSRC]), RTA_DATA(tb[RTA_PREFSRC]), abuf, sizeof(abuf))); } if (tb[RTA_PRIORITY]) fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); if (r->rtm_flags & RTNH_F_DEAD) fprintf(fp, "dead "); if (r->rtm_flags & RTNH_F_ONLINK) fprintf(fp, "onlink "); if (r->rtm_flags & RTNH_F_PERVASIVE) fprintf(fp, "pervasive "); if (r->rtm_flags & RTM_F_EQUALIZE) fprintf(fp, "equalize "); if (r->rtm_flags & RTM_F_NOTIFY) fprintf(fp, "notify "); if (tb[RTA_FLOW] && filter.realmmask != ~0U) { __u32 to = *(__u32*)RTA_DATA(tb[RTA_FLOW]); __u32 from = to>>16; to &= 0xFFFF; fprintf(fp, "realm%s ", from ? "s" : ""); if (from) { fprintf(fp, "%s/", rtnl_rtrealm_n2a(from, b1, sizeof(b1))); } fprintf(fp, "%s ", rtnl_rtrealm_n2a(to, b1, sizeof(b1))); }
int print_neigh(struct nlmsghdr *n, void *arg) { FILE *fp = (FILE *)arg; struct ndmsg *r = NLMSG_DATA(n); int len = n->nlmsg_len; struct rtattr *tb[NDA_MAX+1]; static int logit = 1; __u8 protocol = 0; if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH && n->nlmsg_type != RTM_GETNEIGH) { fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n", n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); return 0; } len -= NLMSG_LENGTH(sizeof(*r)); if (len < 0) { fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); return -1; } if (filter.flushb && n->nlmsg_type != RTM_NEWNEIGH) return 0; if (filter.family && filter.family != r->ndm_family) return 0; if (filter.index && filter.index != r->ndm_ifindex) return 0; if (!(filter.state&r->ndm_state) && !(r->ndm_flags & NTF_PROXY) && !(r->ndm_flags & NTF_EXT_LEARNED) && (r->ndm_state || !(filter.state&0x100)) && (r->ndm_family != AF_DECnet)) return 0; if (filter.master && !(n->nlmsg_flags & NLM_F_DUMP_FILTERED)) { if (logit) { logit = 0; fprintf(fp, "\nWARNING: Kernel does not support filtering by master device\n\n"); } } parse_rtattr(tb, NDA_MAX, NDA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); if (inet_addr_match_rta(&filter.pfx, tb[NDA_DST])) return 0; if (tb[NDA_PROTOCOL]) protocol = rta_getattr_u8(tb[NDA_PROTOCOL]); if (filter.protocol && filter.protocol != protocol) return 0; if (filter.unused_only && tb[NDA_CACHEINFO]) { struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]); if (ci->ndm_refcnt) return 0; } if (filter.flushb) { struct nlmsghdr *fn; if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { if (flush_update()) return -1; } fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp)); memcpy(fn, n, n->nlmsg_len); fn->nlmsg_type = RTM_DELNEIGH; fn->nlmsg_flags = NLM_F_REQUEST; fn->nlmsg_seq = ++rth.seq; filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb; filter.flushed++; if (show_stats < 2) return 0; } open_json_object(NULL); if (n->nlmsg_type == RTM_DELNEIGH) print_bool(PRINT_ANY, "deleted", "Deleted ", true); else if (n->nlmsg_type == RTM_GETNEIGH) print_null(PRINT_ANY, "miss", "%s ", "miss"); if (tb[NDA_DST]) { const char *dst; int family = r->ndm_family; if (family == AF_BRIDGE) { if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr)) family = AF_INET6; else family = AF_INET; } dst = format_host_rta(family, tb[NDA_DST]); print_color_string(PRINT_ANY, ifa_family_color(family), "dst", "%s ", dst); } if (!filter.index && r->ndm_ifindex) { if (!is_json_context()) fprintf(fp, "dev "); print_color_string(PRINT_ANY, COLOR_IFNAME, "dev", "%s ", ll_index_to_name(r->ndm_ifindex)); } if (tb[NDA_LLADDR]) { const char *lladdr; SPRINT_BUF(b1); lladdr = ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]), RTA_PAYLOAD(tb[NDA_LLADDR]), ll_index_to_type(r->ndm_ifindex), b1, sizeof(b1)); if (!is_json_context()) fprintf(fp, "lladdr "); print_color_string(PRINT_ANY, COLOR_MAC, "lladdr", "%s", lladdr); } if (r->ndm_flags & NTF_ROUTER) print_null(PRINT_ANY, "router", " %s", "router"); if (r->ndm_flags & NTF_PROXY) print_null(PRINT_ANY, "proxy", " %s", "proxy"); if (r->ndm_flags & NTF_EXT_LEARNED) print_null(PRINT_ANY, "extern_learn", " %s ", "extern_learn"); if (show_stats) { if (tb[NDA_CACHEINFO]) print_cacheinfo(RTA_DATA(tb[NDA_CACHEINFO])); if (tb[NDA_PROBES]) print_uint(PRINT_ANY, "probes", " probes %u", rta_getattr_u32(tb[NDA_PROBES])); } if (r->ndm_state) print_neigh_state(r->ndm_state); if (protocol) { SPRINT_BUF(b1); print_string(PRINT_ANY, "protocol", " proto %s ", rtnl_rtprot_n2a(protocol, b1, sizeof(b1))); } print_string(PRINT_FP, NULL, "\n", ""); close_json_object(); fflush(stdout); return 0; }
int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) { FILE *fp = (FILE*)arg; struct rtmsg *r = NLMSG_DATA(n); int len = n->nlmsg_len; struct rtattr * tb[RTA_MAX+1]; char abuf[256]; int host_len = -1; __u32 table; SPRINT_BUF(b1); static int hz; if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) { fprintf(stderr, "Not a route: %08x %08x %08x\n", n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); return 0; } if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE) return 0; len -= NLMSG_LENGTH(sizeof(*r)); if (len < 0) { fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); return -1; } host_len = calc_host_len(r); parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); table = rtm_get_table(r, tb); if (!filter_nlmsg(n, tb, host_len)) return 0; if (filter.flushb) { struct nlmsghdr *fn; if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { if (flush_update()) return -1; } fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp)); memcpy(fn, n, n->nlmsg_len); fn->nlmsg_type = RTM_DELROUTE; fn->nlmsg_flags = NLM_F_REQUEST; fn->nlmsg_seq = ++rth.seq; filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb; filter.flushed++; if (show_stats < 2) return 0; } if (n->nlmsg_type == RTM_DELROUTE) fprintf(fp, "Deleted "); if (r->rtm_type != RTN_UNICAST && !filter.type) fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1))); if (tb[RTA_DST]) { if (r->rtm_dst_len != host_len) { fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_DST]), RTA_DATA(tb[RTA_DST]), abuf, sizeof(abuf)), r->rtm_dst_len ); } else { fprintf(fp, "%s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_DST]), RTA_DATA(tb[RTA_DST]), abuf, sizeof(abuf)) ); } } else if (r->rtm_dst_len) { fprintf(fp, "0/%d ", r->rtm_dst_len); } else { fprintf(fp, "default "); } if (tb[RTA_SRC]) { if (r->rtm_src_len != host_len) { fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_SRC]), RTA_DATA(tb[RTA_SRC]), abuf, sizeof(abuf)), r->rtm_src_len ); } else { fprintf(fp, "from %s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_SRC]), RTA_DATA(tb[RTA_SRC]), abuf, sizeof(abuf)) ); } } else if (r->rtm_src_len) { fprintf(fp, "from 0/%u ", r->rtm_src_len); } if (r->rtm_tos && filter.tosmask != -1) { SPRINT_BUF(b1); fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1))); } if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) { fprintf(fp, "via %s ", format_host(r->rtm_family, RTA_PAYLOAD(tb[RTA_GATEWAY]), RTA_DATA(tb[RTA_GATEWAY]), abuf, sizeof(abuf))); } if (tb[RTA_OIF] && filter.oifmask != -1) fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF]))); if (!(r->rtm_flags&RTM_F_CLONED)) { if (table != RT_TABLE_MAIN && !filter.tb) fprintf(fp, " table %s ", rtnl_rttable_n2a(table, b1, sizeof(b1))); if (r->rtm_protocol != RTPROT_BOOT && filter.protocolmask != -1) fprintf(fp, " proto %s ", rtnl_rtprot_n2a(r->rtm_protocol, b1, sizeof(b1))); if (r->rtm_scope != RT_SCOPE_UNIVERSE && filter.scopemask != -1) fprintf(fp, " scope %s ", rtnl_rtscope_n2a(r->rtm_scope, b1, sizeof(b1))); } if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { /* Do not use format_host(). It is our local addr and symbolic name will not be useful. */ fprintf(fp, " src %s ", rt_addr_n2a(r->rtm_family, RTA_PAYLOAD(tb[RTA_PREFSRC]), RTA_DATA(tb[RTA_PREFSRC]), abuf, sizeof(abuf))); } if (tb[RTA_PRIORITY]) fprintf(fp, " metric %u ", rta_getattr_u32(tb[RTA_PRIORITY])); if (r->rtm_flags & RTNH_F_DEAD) fprintf(fp, "dead "); if (r->rtm_flags & RTNH_F_ONLINK) fprintf(fp, "onlink "); if (r->rtm_flags & RTNH_F_PERVASIVE) fprintf(fp, "pervasive "); if (r->rtm_flags & RTM_F_NOTIFY) fprintf(fp, "notify "); if (tb[RTA_MARK]) { unsigned int mark = *(unsigned int*)RTA_DATA(tb[RTA_MARK]); if (mark) { if (mark >= 16) fprintf(fp, " mark 0x%x", mark); else fprintf(fp, " mark %u", mark); } } if (tb[RTA_FLOW] && filter.realmmask != ~0U) { __u32 to = rta_getattr_u32(tb[RTA_FLOW]); __u32 from = to>>16; to &= 0xFFFF; fprintf(fp, "realm%s ", from ? "s" : ""); if (from) { fprintf(fp, "%s/", rtnl_rtrealm_n2a(from, b1, sizeof(b1))); } fprintf(fp, "%s ", rtnl_rtrealm_n2a(to, b1, sizeof(b1))); }