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Style, error_msg

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This commit is contained in:
Glenn L McGrath 2002-11-28 11:17:19 +00:00
parent eaed78a91f
commit 1652855fbc
1 changed files with 103 additions and 60 deletions
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163
networking/libiproute/iproute.c
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@ -90,48 +90,59 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
if (r->rtm_family == AF_INET6) { if (r->rtm_family == AF_INET6) {
if (filter.tb) { if (filter.tb) {
if (filter.tb < 0) { if (filter.tb < 0) {
if (!(r->rtm_flags&RTM_F_CLONED)) if (!(r->rtm_flags&RTM_F_CLONED)) {
return 0; return 0;
}
} else { } else {
if (r->rtm_flags&RTM_F_CLONED) if (r->rtm_flags&RTM_F_CLONED) {
return 0; return 0;
}
if (filter.tb == RT_TABLE_LOCAL) { if (filter.tb == RT_TABLE_LOCAL) {
if (r->rtm_type != RTN_LOCAL) if (r->rtm_type != RTN_LOCAL) {
return 0; return 0;
}
} else if (filter.tb == RT_TABLE_MAIN) { } else if (filter.tb == RT_TABLE_MAIN) {
if (r->rtm_type == RTN_LOCAL) if (r->rtm_type == RTN_LOCAL) {
return 0; return 0;
}
} else { } else {
return 0; return 0;
} }
} }
} }
} else { } else {
if (filter.tb > 0 && filter.tb != r->rtm_table) if (filter.tb > 0 && filter.tb != r->rtm_table) {
return 0; return 0;
}
} }
if (filter.rdst.family && 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; return 0;
}
if (filter.mdst.family && if (filter.mdst.family &&
(r->rtm_family != 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; return 0;
}
if (filter.rsrc.family && 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; return 0;
}
if (filter.msrc.family && if (filter.msrc.family &&
(r->rtm_family != 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; return 0;
}
memset(tb, 0, sizeof(tb)); memset(tb, 0, sizeof(tb));
parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
if (n->nlmsg_type == RTM_DELROUTE) if (n->nlmsg_type == RTM_DELROUTE) {
fprintf(fp, "Deleted "); 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))); fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
}
if (tb[RTA_DST]) { if (tb[RTA_DST]) {
if (r->rtm_dst_len != host_len) { 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]), RTA_DATA(tb[RTA_GATEWAY]),
abuf, sizeof(abuf))); 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]))); fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
}
if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
/* Do not use format_host(). It is our local addr /* 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]), RTA_DATA(tb[RTA_PREFSRC]),
abuf, sizeof(abuf))); abuf, sizeof(abuf)));
} }
if (tb[RTA_PRIORITY]) if (tb[RTA_PRIORITY]) {
fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY]));
}
if (r->rtm_family == AF_INET6) { if (r->rtm_family == AF_INET6) {
struct rta_cacheinfo *ci = NULL; struct rta_cacheinfo *ci = NULL;
if (tb[RTA_CACHEINFO]) if (tb[RTA_CACHEINFO]) {
ci = RTA_DATA(tb[RTA_CACHEINFO]); ci = RTA_DATA(tb[RTA_CACHEINFO]);
}
if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) { if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
static int hz; static int hz;
if (!hz) if (!hz) {
hz = get_hz(); hz = get_hz();
if (r->rtm_flags & RTM_F_CLONED) }
if (r->rtm_flags & RTM_F_CLONED) {
fprintf(fp, "%s cache ", _SL_); fprintf(fp, "%s cache ", _SL_);
if (ci->rta_expires) }
if (ci->rta_expires) {
fprintf(fp, " expires %dsec", ci->rta_expires/hz); 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); fprintf(fp, " error %d", ci->rta_error);
}
} else if (ci) { } else if (ci) {
if (ci->rta_error != 0) if (ci->rta_error != 0)
fprintf(fp, " error %d", ci->rta_error); 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; inet_prefix addr;
NEXT_ARG(); NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family); 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; req.r.rtm_family = addr.family;
}
addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen); addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "via") == 0) { } else if (strcmp(*argv, "via") == 0) {
inet_prefix addr; inet_prefix addr;
gw_ok = 1; gw_ok = 1;
NEXT_ARG(); NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family); 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; req.r.rtm_family = addr.family;
}
addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen); addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "mtu") == 0) { } else if (strcmp(*argv, "mtu") == 0) {
unsigned mtu; unsigned mtu;
@ -278,8 +298,9 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
mxlock |= (1<<RTAX_MTU); mxlock |= (1<<RTAX_MTU);
NEXT_ARG(); NEXT_ARG();
} }
if (get_unsigned(&mtu, *argv, 0)) if (get_unsigned(&mtu, *argv, 0)) {
invarg("\"mtu\" value is invalid\n", *argv); invarg("\"mtu\" value is invalid\n", *argv);
}
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
} else if (matches(*argv, "protocol") == 0) { } else if (matches(*argv, "protocol") == 0) {
int prot; int prot;
@ -306,21 +327,25 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
type_ok = 1; type_ok = 1;
} }
if (dst_ok) if (dst_ok) {
duparg2("to", *argv); duparg2("to", *argv);
}
get_prefix(&dst, *argv, req.r.rtm_family); 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_family = dst.family;
}
req.r.rtm_dst_len = dst.bitlen; req.r.rtm_dst_len = dst.bitlen;
dst_ok = 1; dst_ok = 1;
if (dst.bytelen) if (dst.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen); addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
}
} }
argc--; argv++; argc--; argv++;
} }
if (rtnl_open(&rth, 0) < 0) if (rtnl_open(&rth, 0) < 0) {
exit(1); exit(1);
}
if (d) { if (d) {
int idx; 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 (mxrta->rta_len > RTA_LENGTH(0)) {
if (mxlock) if (mxlock) {
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock); rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock);
}
addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); 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; 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); exit(2);
}
return 0; return 0;
} }
@ -390,8 +418,9 @@ static int iproute_list(int argc, char **argv)
NEXT_ARG(); NEXT_ARG();
filter.protocolmask = -1; filter.protocolmask = -1;
if (rtnl_rtprot_a2n(&prot, *argv)) { if (rtnl_rtprot_a2n(&prot, *argv)) {
if (strcmp(*argv, "all") != 0) if (strcmp(*argv, "all") != 0) {
invarg("invalid \"protocol\"\n", *argv); invarg("invalid \"protocol\"\n", *argv);
}
prot = 0; prot = 0;
filter.protocolmask = 0; filter.protocolmask = 0;
} }
@ -439,11 +468,13 @@ static int iproute_list(int argc, char **argv)
argc--; argv++; argc--; argv++;
} }
if (do_ipv6 == AF_UNSPEC && filter.tb) if (do_ipv6 == AF_UNSPEC && filter.tb) {
do_ipv6 = AF_INET; do_ipv6 = AF_INET;
}
if (rtnl_open(&rth, 0) < 0) if (rtnl_open(&rth, 0) < 0) {
exit(1); exit(1);
}
ll_init_map(&rth); ll_init_map(&rth);
@ -552,8 +583,7 @@ int iproute_get(int argc, char **argv)
} }
if (req.r.rtm_dst_len == 0) { if (req.r.rtm_dst_len == 0) {
fprintf(stderr, "need at least destination address\n"); error_msg_and_die("need at least destination address");
exit(1);
} }
if (rtnl_open(&rth, 0) < 0) if (rtnl_open(&rth, 0) < 0)
@ -566,25 +596,27 @@ int iproute_get(int argc, char **argv)
if (idev) { if (idev) {
if ((idx = ll_name_to_index(idev)) == 0) { 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; return -1;
} }
addattr32(&req.n, sizeof(req), RTA_IIF, idx); addattr32(&req.n, sizeof(req), RTA_IIF, idx);
} }
if (odev) { if (odev) {
if ((idx = ll_name_to_index(odev)) == 0) { 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; return -1;
} }
addattr32(&req.n, sizeof(req), RTA_OIF, idx); 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; 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); exit(2);
}
if (connected && !from_ok) { if (connected && !from_ok) {
struct rtmsg *r = NLMSG_DATA(&req.n); struct rtmsg *r = NLMSG_DATA(&req.n);
@ -592,17 +624,16 @@ int iproute_get(int argc, char **argv)
struct rtattr * tb[RTA_MAX+1]; struct rtattr * tb[RTA_MAX+1];
if (print_route(NULL, &req.n, (void*)stdout) < 0) { if (print_route(NULL, &req.n, (void*)stdout) < 0) {
fprintf(stderr, "An error :-)\n"); error_msg_and_die("An error :-)");
exit(1);
} }
if (req.n.nlmsg_type != RTM_NEWROUTE) { if (req.n.nlmsg_type != RTM_NEWROUTE) {
fprintf(stderr, "Not a route?\n"); error_msg("Not a route?");
return -1; return -1;
} }
len -= NLMSG_LENGTH(sizeof(*r)); len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) { if (len < 0) {
fprintf(stderr, "Wrong len %d\n", len); error_msg("Wrong len %d", len);
return -1; return -1;
} }
@ -613,25 +644,28 @@ int iproute_get(int argc, char **argv)
tb[RTA_PREFSRC]->rta_type = RTA_SRC; tb[RTA_PREFSRC]->rta_type = RTA_SRC;
r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]); r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
} else if (!tb[RTA_SRC]) { } else if (!tb[RTA_SRC]) {
fprintf(stderr, "Failed to connect the route\n"); error_msg("Failed to connect the route");
return -1; return -1;
} }
if (!odev && tb[RTA_OIF]) if (!odev && tb[RTA_OIF]) {
tb[RTA_OIF]->rta_type = 0; tb[RTA_OIF]->rta_type = 0;
if (tb[RTA_GATEWAY]) }
if (tb[RTA_GATEWAY]) {
tb[RTA_GATEWAY]->rta_type = 0; tb[RTA_GATEWAY]->rta_type = 0;
if (!idev && tb[RTA_IIF]) }
if (!idev && tb[RTA_IIF]) {
tb[RTA_IIF]->rta_type = 0; tb[RTA_IIF]->rta_type = 0;
}
req.n.nlmsg_flags = NLM_F_REQUEST; req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = RTM_GETROUTE; 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); exit(2);
}
} }
if (print_route(NULL, &req.n, (void*)stdout) < 0) { if (print_route(NULL, &req.n, (void*)stdout) < 0) {
fprintf(stderr, "An error :-)\n"); error_msg_and_die("An error :-)");
exit(1);
} }
exit(0); exit(0);
@ -646,36 +680,45 @@ void iproute_reset_filter()
int do_iproute(int argc, char **argv) int do_iproute(int argc, char **argv)
{ {
if (argc < 1) if (argc < 1) {
return iproute_list(0, NULL); 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, return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL,
argc-1, argv+1); 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, return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE,
argc-1, argv+1); 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, return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE,
argc-1, argv+1); argc-1, argv+1);
if (matches(*argv, "prepend") == 0) }
if (matches(*argv, "prepend") == 0) {
return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE, return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE,
argc-1, argv+1); 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, return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND,
argc-1, argv+1); argc-1, argv+1);
if (matches(*argv, "test") == 0) }
if (matches(*argv, "test") == 0) {
return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL, return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL,
argc-1, argv+1); argc-1, argv+1);
if (matches(*argv, "delete") == 0) }
if (matches(*argv, "delete") == 0) {
return iproute_modify(RTM_DELROUTE, 0, return iproute_modify(RTM_DELROUTE, 0,
argc-1, argv+1); argc-1, argv+1);
}
if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
|| matches(*argv, "lst") == 0) || matches(*argv, "lst") == 0) {
return iproute_list(argc-1, argv+1); return iproute_list(argc-1, argv+1);
if (matches(*argv, "get") == 0) }
if (matches(*argv, "get") == 0) {
return iproute_get(argc-1, argv+1); 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);
} }