diff options
Diffstat (limited to 'networking/libiproute/iproute.c')
-rw-r--r-- | networking/libiproute/iproute.c | 163 |
1 files changed, 103 insertions, 60 deletions
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c index fcfb409..e251b94 100644 --- a/networking/libiproute/iproute.c +++ b/networking/libiproute/iproute.c @@ -90,48 +90,59 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) if (r->rtm_family == AF_INET6) { if (filter.tb) { if (filter.tb < 0) { - if (!(r->rtm_flags&RTM_F_CLONED)) + if (!(r->rtm_flags&RTM_F_CLONED)) { return 0; + } } else { - if (r->rtm_flags&RTM_F_CLONED) + if (r->rtm_flags&RTM_F_CLONED) { return 0; + } if (filter.tb == RT_TABLE_LOCAL) { - if (r->rtm_type != RTN_LOCAL) + if (r->rtm_type != RTN_LOCAL) { return 0; + } } else if (filter.tb == RT_TABLE_MAIN) { - if (r->rtm_type == RTN_LOCAL) + if (r->rtm_type == RTN_LOCAL) { return 0; + } } else { return 0; } } } } else { - if (filter.tb > 0 && filter.tb != r->rtm_table) + if (filter.tb > 0 && filter.tb != r->rtm_table) { return 0; + } } if (filter.rdst.family && - (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) + (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))) + (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)) + (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))) + (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) { return 0; + } memset(tb, 0, sizeof(tb)); parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); - if (n->nlmsg_type == RTM_DELROUTE) + if (n->nlmsg_type == RTM_DELROUTE) { fprintf(fp, "Deleted "); - if (r->rtm_type != RTN_UNICAST && !filter.type) + } + 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) { @@ -178,8 +189,9 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) RTA_DATA(tb[RTA_GATEWAY]), abuf, sizeof(abuf))); } - if (tb[RTA_OIF] && filter.oifmask != -1) + if (tb[RTA_OIF] && filter.oifmask != -1) { fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF]))); + } if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { /* Do not use format_host(). It is our local addr @@ -191,22 +203,28 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) RTA_DATA(tb[RTA_PREFSRC]), abuf, sizeof(abuf))); } - if (tb[RTA_PRIORITY]) + if (tb[RTA_PRIORITY]) { fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); + } if (r->rtm_family == AF_INET6) { struct rta_cacheinfo *ci = NULL; - if (tb[RTA_CACHEINFO]) + if (tb[RTA_CACHEINFO]) { ci = RTA_DATA(tb[RTA_CACHEINFO]); + } if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) { static int hz; - if (!hz) + if (!hz) { hz = get_hz(); - if (r->rtm_flags & RTM_F_CLONED) + } + if (r->rtm_flags & RTM_F_CLONED) { fprintf(fp, "%s cache ", _SL_); - if (ci->rta_expires) + } + if (ci->rta_expires) { fprintf(fp, " expires %dsec", ci->rta_expires/hz); - if (ci->rta_error != 0) + } + if (ci->rta_error != 0) { fprintf(fp, " error %d", ci->rta_error); + } } else if (ci) { if (ci->rta_error != 0) fprintf(fp, " error %d", ci->rta_error); @@ -260,16 +278,18 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv) inet_prefix addr; NEXT_ARG(); get_addr(&addr, *argv, req.r.rtm_family); - if (req.r.rtm_family == AF_UNSPEC) + if (req.r.rtm_family == AF_UNSPEC) { req.r.rtm_family = addr.family; + } addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen); } else if (strcmp(*argv, "via") == 0) { inet_prefix addr; gw_ok = 1; NEXT_ARG(); get_addr(&addr, *argv, req.r.rtm_family); - if (req.r.rtm_family == AF_UNSPEC) + if (req.r.rtm_family == AF_UNSPEC) { req.r.rtm_family = addr.family; + } addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen); } else if (strcmp(*argv, "mtu") == 0) { unsigned mtu; @@ -278,8 +298,9 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv) mxlock |= (1<<RTAX_MTU); NEXT_ARG(); } - if (get_unsigned(&mtu, *argv, 0)) + if (get_unsigned(&mtu, *argv, 0)) { invarg("\"mtu\" value is invalid\n", *argv); + } rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); } else if (matches(*argv, "protocol") == 0) { int prot; @@ -306,21 +327,25 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv) type_ok = 1; } - if (dst_ok) + if (dst_ok) { duparg2("to", *argv); + } get_prefix(&dst, *argv, req.r.rtm_family); - if (req.r.rtm_family == AF_UNSPEC) + if (req.r.rtm_family == AF_UNSPEC) { req.r.rtm_family = dst.family; + } req.r.rtm_dst_len = dst.bitlen; dst_ok = 1; - if (dst.bytelen) + if (dst.bytelen) { addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen); + } } argc--; argv++; } - if (rtnl_open(&rth, 0) < 0) + if (rtnl_open(&rth, 0) < 0) { exit(1); + } if (d) { int idx; @@ -337,16 +362,19 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv) } if (mxrta->rta_len > RTA_LENGTH(0)) { - if (mxlock) + if (mxlock) { rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock); + } addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); } - if (req.r.rtm_family == AF_UNSPEC) + if (req.r.rtm_family == AF_UNSPEC) { req.r.rtm_family = AF_INET; + } - if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) + if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) { exit(2); + } return 0; } @@ -390,8 +418,9 @@ static int iproute_list(int argc, char **argv) NEXT_ARG(); filter.protocolmask = -1; if (rtnl_rtprot_a2n(&prot, *argv)) { - if (strcmp(*argv, "all") != 0) + if (strcmp(*argv, "all") != 0) { invarg("invalid \"protocol\"\n", *argv); + } prot = 0; filter.protocolmask = 0; } @@ -439,11 +468,13 @@ static int iproute_list(int argc, char **argv) argc--; argv++; } - if (do_ipv6 == AF_UNSPEC && filter.tb) + if (do_ipv6 == AF_UNSPEC && filter.tb) { do_ipv6 = AF_INET; + } - if (rtnl_open(&rth, 0) < 0) + if (rtnl_open(&rth, 0) < 0) { exit(1); + } ll_init_map(&rth); @@ -552,8 +583,7 @@ int iproute_get(int argc, char **argv) } if (req.r.rtm_dst_len == 0) { - fprintf(stderr, "need at least destination address\n"); - exit(1); + error_msg_and_die("need at least destination address"); } if (rtnl_open(&rth, 0) < 0) @@ -566,25 +596,27 @@ int iproute_get(int argc, char **argv) if (idev) { if ((idx = ll_name_to_index(idev)) == 0) { - fprintf(stderr, "Cannot find device \"%s\"\n", idev); + error_msg("Cannot find device \"%s\"", idev); return -1; } addattr32(&req.n, sizeof(req), RTA_IIF, idx); } if (odev) { if ((idx = ll_name_to_index(odev)) == 0) { - fprintf(stderr, "Cannot find device \"%s\"\n", odev); + error_msg("Cannot find device \"%s\"", odev); return -1; } addattr32(&req.n, sizeof(req), RTA_OIF, idx); } } - if (req.r.rtm_family == AF_UNSPEC) + if (req.r.rtm_family == AF_UNSPEC) { req.r.rtm_family = AF_INET; + } - if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) + if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) { exit(2); + } if (connected && !from_ok) { struct rtmsg *r = NLMSG_DATA(&req.n); @@ -592,17 +624,16 @@ int iproute_get(int argc, char **argv) struct rtattr * tb[RTA_MAX+1]; if (print_route(NULL, &req.n, (void*)stdout) < 0) { - fprintf(stderr, "An error :-)\n"); - exit(1); + error_msg_and_die("An error :-)"); } if (req.n.nlmsg_type != RTM_NEWROUTE) { - fprintf(stderr, "Not a route?\n"); + error_msg("Not a route?"); return -1; } len -= NLMSG_LENGTH(sizeof(*r)); if (len < 0) { - fprintf(stderr, "Wrong len %d\n", len); + error_msg("Wrong len %d", len); return -1; } @@ -613,25 +644,28 @@ int iproute_get(int argc, char **argv) tb[RTA_PREFSRC]->rta_type = RTA_SRC; r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]); } else if (!tb[RTA_SRC]) { - fprintf(stderr, "Failed to connect the route\n"); + error_msg("Failed to connect the route"); return -1; } - if (!odev && tb[RTA_OIF]) + if (!odev && tb[RTA_OIF]) { tb[RTA_OIF]->rta_type = 0; - if (tb[RTA_GATEWAY]) + } + if (tb[RTA_GATEWAY]) { tb[RTA_GATEWAY]->rta_type = 0; - if (!idev && tb[RTA_IIF]) + } + if (!idev && tb[RTA_IIF]) { tb[RTA_IIF]->rta_type = 0; + } req.n.nlmsg_flags = NLM_F_REQUEST; req.n.nlmsg_type = RTM_GETROUTE; - if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) + if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) { exit(2); + } } if (print_route(NULL, &req.n, (void*)stdout) < 0) { - fprintf(stderr, "An error :-)\n"); - exit(1); + error_msg_and_die("An error :-)"); } exit(0); @@ -646,36 +680,45 @@ void iproute_reset_filter() int do_iproute(int argc, char **argv) { - if (argc < 1) + if (argc < 1) { return iproute_list(0, NULL); + } - if (matches(*argv, "add") == 0) + if (matches(*argv, "add") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1); - if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0) + } + if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE, argc-1, argv+1); - if (matches(*argv, "replace") == 0) + } + if (matches(*argv, "replace") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1); - if (matches(*argv, "prepend") == 0) + } + if (matches(*argv, "prepend") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE, argc-1, argv+1); - if (matches(*argv, "append") == 0) + } + if (matches(*argv, "append") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND, argc-1, argv+1); - if (matches(*argv, "test") == 0) + } + if (matches(*argv, "test") == 0) { return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL, argc-1, argv+1); - if (matches(*argv, "delete") == 0) + } + if (matches(*argv, "delete") == 0) { return iproute_modify(RTM_DELROUTE, 0, argc-1, argv+1); + } if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 - || matches(*argv, "lst") == 0) + || matches(*argv, "lst") == 0) { return iproute_list(argc-1, argv+1); - if (matches(*argv, "get") == 0) + } + if (matches(*argv, "get") == 0) { return iproute_get(argc-1, argv+1); - fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv); - exit(-1); + } + error_msg_and_die("Command \"%s\" is unknown, try \"ip route help\".", *argv); } |