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ip link: fix display of interface groups

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This change adds the interface group to the output of "ip link show".

It also makes "ip link" print _all_ devices if no group filter is specified;
previously, only interfaces of the default group (0) were shown.

Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
This commit is contained in:
Stefan Tomanek 2013-08-03 14:20:53 +02:00 committed by Stephen Hemminger
parent 3140e9a3a3
commit c4fdf75d3d
3 changed files with 28 additions and 2 deletions
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1
include/rt_names.h
View File

@ -8,6 +8,7 @@ const char *rtnl_rtscope_n2a(int id, char *buf, int len);
const char *rtnl_rttable_n2a(__u32 id, char *buf, int len);
const char *rtnl_rtrealm_n2a(int id, char *buf, int len);
const char *rtnl_dsfield_n2a(int id, char *buf, int len);
const char *rtnl_group_n2a(int id, char *buf, int len);
int rtnl_rtprot_a2n(__u32 *id, const char *arg);
int rtnl_rtscope_a2n(__u32 *id, const char *arg);

10
ip/ipaddress.c
View File

@ -418,7 +418,7 @@ int print_linkinfo(const struct sockaddr_nl *who,
if (tb[IFLA_GROUP]) {
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
if (group != filter.group)
if (filter.group != -1 && group != filter.group)
return -1;
}
@ -458,6 +458,12 @@ int print_linkinfo(const struct sockaddr_nl *who,
if (do_link && tb[IFLA_LINKMODE])
print_linkmode(fp, tb[IFLA_LINKMODE]);
if (tb[IFLA_GROUP]) {
SPRINT_BUF(b1);
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
fprintf(fp, "group %s ", rtnl_group_n2a(group, b1, sizeof(b1)));
}
if (filter.showqueue)
print_queuelen(fp, tb);
@ -1050,7 +1056,7 @@ static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
if (filter.family == AF_UNSPEC)
filter.family = preferred_family;
filter.group = INIT_NETDEV_GROUP;
filter.group = -1;
if (action == IPADD_FLUSH) {
if (argc <= 0) {

19
lib/rt_names.c
View File

@ -500,3 +500,22 @@ int rtnl_group_a2n(int *id, const char *arg)
*id = i;
return 0;
}
const char *rtnl_group_n2a(int id, char *buf, int len)
{
struct rtnl_hash_entry *entry;
int i;
if (!rtnl_group_init)
rtnl_group_initialize();
for (i=0; i<256; i++) {
entry = rtnl_group_hash[i];
if (entry && entry->id == id) {
return entry->name;
}
}
snprintf(buf, len, "%d", id);
return buf;
}