ll_map: Add function to remove link cache entry by index

[mirror_iproute2.git] / ip / ip.c

diff --git a/ip/ip.c b/ip/ip.c
index 7c14a8ec18c0073125994d2459a68c4dff71a944..e4131714018f9a843a02cbff2fa9054eae75e75d 100644 (file)
--- a/ip/ip.c
+++ b/ip/ip.c
@@ -12,7 +12,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <syslog.h>
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -30,11 +29,10 @@ int human_readable;
 int use_iec;
 int show_stats;
 int show_details;
-int resolve_hosts;
 int oneline;
 int brief;
+int json;
 int timestamp;
-const char *_SL_;
 int force;
 int max_flush_loops = 10;
 int batch_mode;
@@ -54,12 +52,12 @@ static void usage(void)
 "                   netns | l2tp | fou | macsec | tcp_metrics | token | netconf | ila |\n"
 "                   vrf | sr }\n"
 "       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
-"                    -h[uman-readable] | -iec |\n"
-"                    -f[amily] { inet | inet6 | ipx | dnet | mpls | bridge | link } |\n"
-"                    -4 | -6 | -I | -D | -B | -0 |\n"
+"                    -h[uman-readable] | -iec | -j[son] | -p[retty] |\n"
+"                    -f[amily] { inet | inet6 | mpls | bridge | link } |\n"
+"                    -4 | -6 | -I | -D | -M | -B | -0 |\n"
 "                    -l[oops] { maximum-addr-flush-attempts } | -br[ief] |\n"
 "                    -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] [filename] |\n"
-"                    -rc[vbuf] [size] | -n[etns] name | -a[ll] | -c[olor]}\n");
+"                    -rc[vbuf] [size] | -n[etns] name | -a[ll] | -c[olor]}\n");
        exit(-1);
 }
 
@@ -173,6 +171,19 @@ int main(int argc, char **argv)
 {
        char *basename;
        char *batch_file = NULL;
+       int color = 0;
+
+       /* to run vrf exec without root, capabilities might be set, drop them
+        * if not needed as the first thing.
+        * execv will drop them for the child command.
+        * vrf exec requires:
+        * - cap_dac_override to create the cgroup subdir in /sys
+        * - cap_sys_admin to load the BPF program
+        * - cap_net_admin to set the socket into the cgroup
+        */
+       if (argc < 3 || strcmp(argv[1], "vrf") != 0 ||
+                       strcmp(argv[2], "exec") != 0)
+               drop_cap();
 
        basename = strrchr(argv[0], '/');
        if (basename == NULL)
@@ -214,8 +225,6 @@ int main(int argc, char **argv)
                        preferred_family = AF_INET6;
                } else if (strcmp(opt, "-0") == 0) {
                        preferred_family = AF_PACKET;
-               } else if (strcmp(opt, "-I") == 0) {
-                       preferred_family = AF_IPX;
                } else if (strcmp(opt, "-D") == 0) {
                        preferred_family = AF_DECnet;
                } else if (strcmp(opt, "-M") == 0) {
@@ -241,10 +250,6 @@ int main(int argc, char **argv)
                } else if (matches(opt, "-tshort") == 0) {
                        ++timestamp;
                        ++timestamp_short;
-#if 0
-               } else if (matches(opt, "-numeric") == 0) {
-                       rtnl_names_numeric++;
-#endif
                } else if (matches(opt, "-Version") == 0) {
                        printf("ip utility, iproute2-ss%s\n", SNAPSHOT);
                        exit(0);
@@ -258,6 +263,10 @@ int main(int argc, char **argv)
                        batch_file = argv[1];
                } else if (matches(opt, "-brief") == 0) {
                        ++brief;
+               } else if (matches(opt, "-json") == 0) {
+                       ++json;
+               } else if (matches(opt, "-pretty") == 0) {
+                       ++pretty;
                } else if (matches(opt, "-rcvbuf") == 0) {
                        unsigned int size;
 
@@ -271,8 +280,7 @@ int main(int argc, char **argv)
                                exit(-1);
                        }
                        rcvbuf = size;
-               } else if (matches(opt, "-color") == 0) {
-                       enable_color();
+               } else if (matches_color(opt, &color)) {
                } else if (matches(opt, "-help") == 0) {
                        usage();
                } else if (matches(opt, "-netns") == 0) {
@@ -292,12 +300,16 @@ int main(int argc, char **argv)
 
        _SL_ = oneline ? "\\" : "\n";
 
+       check_enable_color(color, json);
+
        if (batch_file)
                return batch(batch_file);
 
        if (rtnl_open(&rth, 0) < 0)
                exit(1);
 
+       rtnl_set_strict_dump(&rth);
+
        if (strlen(basename) > 2)
                return do_cmd(basename+2, argc, argv);