@@ -59,7 +59,7 @@ static int usage(void)
fprintf(stderr, "Usage: ip netns list\n");
fprintf(stderr, " ip netns add NAME\n");
fprintf(stderr, " ip netns delete NAME\n");
- fprintf(stderr, " ip netns identify PID\n");
+ fprintf(stderr, " ip netns identify [PID]\n");
fprintf(stderr, " ip netns pids NAME\n");
fprintf(stderr, " ip netns exec NAME cmd ...\n");
fprintf(stderr, " ip netns monitor\n");
@@ -299,19 +299,17 @@ static int netns_identify(int argc, char **argv)
struct dirent *entry;
if (argc < 1) {
- fprintf(stderr, "No pid specified\n");
- return -1;
- }
- if (argc > 1) {
+ pidstr = "self";
+ } else if (argc > 1) {
fprintf(stderr, "extra arguments specified\n");
return -1;
- }
- pidstr = argv[0];
-
- if (!is_pid(pidstr)) {
- fprintf(stderr, "Specified string '%s' is not a pid\n",
- pidstr);
- return -1;
+ } else {
+ pidstr = argv[0];
+ if (!is_pid(pidstr)) {
+ fprintf(stderr, "Specified string '%s' is not a pid\n",
+ pidstr);
+ return -1;
+ }
}
snprintf(net_path, sizeof(net_path), "/proc/%s/ns/net", pidstr);
@@ -21,7 +21,7 @@ ip-netns \- process network namespace management
.ti -8
.BR "ip netns identify"
-.I PID
+.RI "[ " PID " ]"
.ti -8
.BR "ip netns pids"
@@ -85,10 +85,11 @@ persists until it has no more users. ip netns delete may fail if
the mount point is in use in another mount namespace.
.TP
-.B ip netns identify PID - Report network namespaces names for process
+.B ip netns identify [PID] - Report network namespaces names for process
.sp
This command walks through /var/run/netns and finds all the network
-namespace names for network namespace of the specified process.
+namespace names for network namespace of the specified process, if PID is
+not specified then the current process will be used.
.TP
.B ip netns pids NAME - Report processes in the named network namespace
As 'ip' util will share the same netns from the caller process then we can just look at /proc/self/.. to show the netns of the current process by: ip netns id Signed-off-by: Vadim Kochan <vadim4j@gmail.com> --- ip/ipnetns.c | 22 ++++++++++------------ man/man8/ip-netns.8 | 7 ++++--- 2 files changed, 14 insertions(+), 15 deletions(-)