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bridge: vlan: factor out vlan option printing 

Factor out the code which prints current per-vlan options from
print_vlan_rtm without any changes, later we'll filter based on the vlan
attribute and add support for global vlan option printing.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Nikolay Aleksandrov 2021-08-28 14:07:48 +03:00 committed by David Ahern
parent d2eecb9d1d
commit 312e22fe79
1 changed files with 58 additions and 52 deletions
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100
bridge/vlan.c
View File

@ -621,48 +621,12 @@ static int print_vlan_stats(struct nlmsghdr *n, void *arg)
return 0;
}
int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor)
static void print_vlan_opts(struct rtattr *a)
{
struct rtattr *vtb[BRIDGE_VLANDB_ENTRY_MAX + 1], *a;
struct br_vlan_msg *bvm = NLMSG_DATA(n);
int len = n->nlmsg_len;
int rem;
if (n->nlmsg_type != RTM_NEWVLAN && n->nlmsg_type != RTM_DELVLAN &&
n->nlmsg_type != RTM_GETVLAN) {
fprintf(stderr, "Unknown vlan rtm message: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
len -= NLMSG_LENGTH(sizeof(*bvm));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
if (bvm->family != AF_BRIDGE)
return 0;
if (filter_index && filter_index != bvm->ifindex)
return 0;
if (n->nlmsg_type == RTM_DELVLAN)
print_bool(PRINT_ANY, "deleted", "Deleted ", true);
if (monitor)
vlan_rtm_cur_ifidx = -1;
if (vlan_rtm_cur_ifidx != -1 && vlan_rtm_cur_ifidx != bvm->ifindex) {
close_vlan_port();
vlan_rtm_cur_ifidx = -1;
}
rem = len;
for (a = BRVLAN_RTA(bvm); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) {
struct rtattr *vtb[BRIDGE_VLANDB_ENTRY_MAX + 1];
struct bridge_vlan_xstats vstats;
struct bridge_vlan_info *vinfo;
__u32 vrange = 0;
__u16 vrange = 0;
__u8 state = 0;
parse_rtattr_flags(vtb, BRIDGE_VLANDB_ENTRY_MAX, RTA_DATA(a),
@ -703,14 +667,6 @@ int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor)
vstats.tx_bytes = rta_getattr_u64(attr);
}
}
if (vlan_rtm_cur_ifidx != bvm->ifindex) {
open_vlan_port(bvm->ifindex, VLAN_SHOW_VLAN);
open_json_object(NULL);
vlan_rtm_cur_ifidx = bvm->ifindex;
} else {
open_json_object(NULL);
print_string(PRINT_FP, NULL, "%-" __stringify(IFNAMSIZ) "s ", "");
}
print_range("vlan", vinfo->vid, vrange);
print_vlan_flags(vinfo->flags);
print_nl();
@ -719,6 +675,56 @@ int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor)
print_nl();
if (show_stats)
__print_one_vlan_stats(&vstats);
}
int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor)
{
struct br_vlan_msg *bvm = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *a;
int rem;
if (n->nlmsg_type != RTM_NEWVLAN && n->nlmsg_type != RTM_DELVLAN &&
n->nlmsg_type != RTM_GETVLAN) {
fprintf(stderr, "Unknown vlan rtm message: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
len -= NLMSG_LENGTH(sizeof(*bvm));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
if (bvm->family != AF_BRIDGE)
return 0;
if (filter_index && filter_index != bvm->ifindex)
return 0;
if (n->nlmsg_type == RTM_DELVLAN)
print_bool(PRINT_ANY, "deleted", "Deleted ", true);
if (monitor)
vlan_rtm_cur_ifidx = -1;
if (vlan_rtm_cur_ifidx != -1 && vlan_rtm_cur_ifidx != bvm->ifindex) {
close_vlan_port();
vlan_rtm_cur_ifidx = -1;
}
rem = len;
for (a = BRVLAN_RTA(bvm); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) {
if (vlan_rtm_cur_ifidx != bvm->ifindex) {
open_vlan_port(bvm->ifindex, VLAN_SHOW_VLAN);
open_json_object(NULL);
vlan_rtm_cur_ifidx = bvm->ifindex;
} else {
open_json_object(NULL);
print_string(PRINT_FP, NULL, "%-" __stringify(IFNAMSIZ) "s ", "");
}
print_vlan_opts(a);
close_json_object();
}