static int do_show(int argc, char **argv)
{
struct {
struct nlmsghdr n;
struct netconfmsg ncm;
char buf[1024];
} req;
ipnetconf_reset_filter(0);
filter.family = preferred_family;
if (filter.family == AF_UNSPEC)
filter.family = AF_INET;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
filter.ifindex = ll_name_to_index(*argv);
if (filter.ifindex <= 0) {
fprintf(stderr, "Device \"%s\" does not exist.\n",
*argv);
return -1;
}
}
argv++; argc--;
}
ll_init_map(&rth);
if (filter.ifindex) {
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct netconfmsg));
req.n.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
req.n.nlmsg_type = RTM_GETNETCONF;
req.ncm.ncm_family = filter.family;
if (filter.ifindex)
addattr_l(&req.n, sizeof(req), NETCONFA_IFINDEX,
&filter.ifindex, sizeof(filter.ifindex));
if (rtnl_send(&rth, &req.n, req.n.nlmsg_len) < 0) {
perror("Can not send request");
exit(1);
}
rtnl_listen(&rth, print_netconf, stdout);
} else {
dump:
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETNETCONF) < 0) {
perror("Cannot send dump request");
exit(1);
}
if (rtnl_dump_filter(&rth, print_netconf2, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
if (preferred_family == AF_UNSPEC) {
preferred_family = AF_INET6;
filter.family = AF_INET6;
goto dump;
}
}
return 0;
}
static int do_show(int argc, char **argv)
{
struct {
struct nlmsghdr n;
struct netconfmsg ncm;
char buf[1024];
} req = {
.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct netconfmsg)),
.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
.n.nlmsg_type = RTM_GETNETCONF,
};
ipnetconf_reset_filter(0);
filter.family = preferred_family;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
filter.ifindex = ll_name_to_index(*argv);
if (filter.ifindex <= 0) {
fprintf(stderr, "Device \"%s\" does not exist.\n",
*argv);
return -1;
}
}
argv++; argc--;
}
ll_init_map(&rth);
if (filter.ifindex && filter.family != AF_UNSPEC) {
req.ncm.ncm_family = filter.family;
addattr_l(&req.n, sizeof(req), NETCONFA_IFINDEX,
&filter.ifindex, sizeof(filter.ifindex));
if (rtnl_send(&rth, &req.n, req.n.nlmsg_len) < 0) {
perror("Can not send request");
exit(1);
}
rtnl_listen(&rth, print_netconf, stdout);
} else {
rth.flags = RTNL_HANDLE_F_SUPPRESS_NLERR;
dump:
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETNETCONF) < 0) {
perror("Cannot send dump request");
exit(1);
}
if (rtnl_dump_filter(&rth, print_netconf2, stdout) < 0) {
/* kernel does not support netconf dump on AF_UNSPEC;
* fall back to requesting by family
*/
if (errno == EOPNOTSUPP &&
filter.family == AF_UNSPEC) {
filter.family = AF_INET;
goto dump;
}
perror("RTNETLINK answers");
fprintf(stderr, "Dump terminated\n");
exit(1);
}
if (preferred_family == AF_UNSPEC && filter.family == AF_INET) {
preferred_family = AF_INET6;
filter.family = AF_INET6;
goto dump;
}
}
return 0;
}
int do_ipnetconf(int argc, char **argv)
{
if (argc > 0) {
if (matches(*argv, "show") == 0 ||
matches(*argv, "lst") == 0 ||
matches(*argv, "list") == 0)
return do_show(argc-1, argv+1);
if (matches(*argv, "help") == 0)
usage();
} else
return do_show(0, NULL);
fprintf(stderr, "Command \"%s\" is unknown, try \"ip netconf help\".\n", *argv);
exit(-1);
}
int do_ipmonitor(int argc, char **argv)
{
char *file = NULL;
unsigned groups = 0;
int llink=0;
int laddr=0;
int lroute=0;
int lmroute=0;
int lprefix=0;
int lneigh=0;
int lnetconf=0;
int lrule=0;
int ifindex=0;
groups |= nl_mgrp(RTNLGRP_LINK);
groups |= nl_mgrp(RTNLGRP_IPV4_IFADDR);
groups |= nl_mgrp(RTNLGRP_IPV6_IFADDR);
groups |= nl_mgrp(RTNLGRP_IPV4_ROUTE);
groups |= nl_mgrp(RTNLGRP_IPV6_ROUTE);
groups |= nl_mgrp(RTNLGRP_IPV4_MROUTE);
groups |= nl_mgrp(RTNLGRP_IPV6_MROUTE);
groups |= nl_mgrp(RTNLGRP_IPV6_PREFIX);
groups |= nl_mgrp(RTNLGRP_NEIGH);
groups |= nl_mgrp(RTNLGRP_IPV4_NETCONF);
groups |= nl_mgrp(RTNLGRP_IPV6_NETCONF);
groups |= nl_mgrp(RTNLGRP_IPV4_RULE);
groups |= nl_mgrp(RTNLGRP_IPV6_RULE);
rtnl_close(&rth);
while (argc > 0) {
if (matches(*argv, "file") == 0) {
NEXT_ARG();
file = *argv;
} else if (matches(*argv, "label") == 0) {
prefix_banner = 1;
} else if (matches(*argv, "link") == 0) {
llink=1;
groups = 0;
} else if (matches(*argv, "address") == 0) {
laddr=1;
groups = 0;
} else if (matches(*argv, "route") == 0) {
lroute=1;
groups = 0;
} else if (matches(*argv, "mroute") == 0) {
lmroute=1;
groups = 0;
} else if (matches(*argv, "prefix") == 0) {
lprefix=1;
groups = 0;
} else if (matches(*argv, "neigh") == 0) {
lneigh = 1;
groups = 0;
} else if (matches(*argv, "netconf") == 0) {
lnetconf = 1;
groups = 0;
} else if (matches(*argv, "rule") == 0) {
lrule = 1;
groups = 0;
} else if (strcmp(*argv, "all") == 0) {
prefix_banner=1;
} else if (matches(*argv, "help") == 0) {
usage();
} else if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
ifindex = ll_name_to_index(*argv);
if (!ifindex)
invarg("Device does not exist\n", *argv);
} else {
fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
exit(-1);
}
argc--; argv++;
}
ipaddr_reset_filter(1, ifindex);
iproute_reset_filter(ifindex);
ipmroute_reset_filter(ifindex);
ipneigh_reset_filter(ifindex);
ipnetconf_reset_filter(ifindex);
if (llink)
groups |= nl_mgrp(RTNLGRP_LINK);
if (laddr) {
if (!preferred_family || preferred_family == AF_INET)
groups |= nl_mgrp(RTNLGRP_IPV4_IFADDR);
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_IFADDR);
}
if (lroute) {
if (!preferred_family || preferred_family == AF_INET)
groups |= nl_mgrp(RTNLGRP_IPV4_ROUTE);
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_ROUTE);
}
if (lmroute) {
if (!preferred_family || preferred_family == AF_INET)
groups |= nl_mgrp(RTNLGRP_IPV4_MROUTE);
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_MROUTE);
}
if (lprefix) {
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_PREFIX);
}
if (lneigh) {
groups |= nl_mgrp(RTNLGRP_NEIGH);
}
if (lnetconf) {
if (!preferred_family || preferred_family == AF_INET)
groups |= nl_mgrp(RTNLGRP_IPV4_NETCONF);
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_NETCONF);
}
if (lrule) {
if (!preferred_family || preferred_family == AF_INET)
groups |= nl_mgrp(RTNLGRP_IPV4_RULE);
if (!preferred_family || preferred_family == AF_INET6)
groups |= nl_mgrp(RTNLGRP_IPV6_RULE);
}
if (file) {
FILE *fp;
fp = fopen(file, "r");
if (fp == NULL) {
perror("Cannot fopen");
exit(-1);
}
return rtnl_from_file(fp, accept_msg, stdout);
}
if (rtnl_open(&rth, groups) < 0)
exit(1);
ll_init_map(&rth);
if (rtnl_listen(&rth, accept_msg, stdout) < 0)
exit(2);
return 0;
}
