* [PATCH iproute2] ss: add option --tos for requesting ipv4 tos and ipv6 tclass
@ 2019-02-13 12:39 Konstantin Khlebnikov
2019-02-13 22:00 ` Stephen Hemminger
0 siblings, 1 reply; 2+ messages in thread
From: Konstantin Khlebnikov @ 2019-02-13 12:39 UTC (permalink / raw)
To: Stephen Hemminger, netdev; +Cc: Eric Dumazet
Also show socket class_id/priority used by classful qdisc.
Kernel report this together with tclass since commit
("inet_diag: fix reporting cgroup classid and fallback to priority")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
---
man/man8/ss.8 | 17 +++++++++++++++++
misc/ss.c | 27 +++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
diff --git a/man/man8/ss.8 b/man/man8/ss.8
index 553a6cf46f0e..9f21202de424 100644
--- a/man/man8/ss.8
+++ b/man/man8/ss.8
@@ -244,6 +244,23 @@ the pacing rate and max pacing rate
a helper variable for TCP internal auto tuning socket receive buffer
.RE
.TP
+.B \-\-tos
+Show ToS and priority information. Below fields may appear:
+.RS
+.P
+.TP
+.B tos
+IPv4 Type-of-Service byte
+.P
+.TP
+.B tclass
+IPv6 Traffic Class byte
+.P
+.TP
+.B class_id
+Class id set by net_cls cgroup. If class is zero this shows priority set by SO_PRIORITY.
+.RE
+.TP
.B \-K, \-\-kill
Attempts to forcibly close sockets. This option displays sockets that are
successfully closed and silently skips sockets that the kernel does not support
diff --git a/misc/ss.c b/misc/ss.c
index 3589ebedc5a0..9e821faf0d31 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -110,6 +110,7 @@ static int show_header = 1;
static int follow_events;
static int sctp_ino;
static int show_tipcinfo;
+static int show_tos;
enum col_id {
COL_NETID,
@@ -3008,6 +3009,15 @@ static int inet_show_sock(struct nlmsghdr *nlh,
}
}
+ if (show_tos) {
+ if (tb[INET_DIAG_TOS])
+ out(" tos:%#x", rta_getattr_u8(tb[INET_DIAG_TOS]));
+ if (tb[INET_DIAG_TCLASS])
+ out(" tclass:%#x", rta_getattr_u8(tb[INET_DIAG_TCLASS]));
+ if (tb[INET_DIAG_CLASS_ID])
+ out(" class_id:%#x", rta_getattr_u32(tb[INET_DIAG_CLASS_ID]));
+ }
+
if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
out("\n\t");
if (s->type == IPPROTO_SCTP)
@@ -3058,6 +3068,11 @@ static int tcpdiag_send(int fd, int protocol, struct filter *f)
req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
}
+ if (show_tos) {
+ req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1));
+ req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1));
+ }
+
iov[0] = (struct iovec){
.iov_base = &req,
.iov_len = sizeof(req)
@@ -3118,6 +3133,11 @@ static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
}
+ if (show_tos) {
+ req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1));
+ req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1));
+ }
+
iov[0] = (struct iovec){
.iov_base = &req,
.iov_len = sizeof(req)
@@ -4661,6 +4681,7 @@ static void _usage(FILE *dest)
" -i, --info show internal TCP information\n"
" --tipcinfo show internal tipc socket information\n"
" -s, --summary show socket usage summary\n"
+" --tos show tos and priority information\n"
" -b, --bpf show bpf filter socket information\n"
" -E, --events continually display sockets as they are destroyed\n"
" -Z, --context display process SELinux security contexts\n"
@@ -4765,6 +4786,8 @@ static int scan_state(const char *state)
#define OPT_TIPCSOCK 257
#define OPT_TIPCINFO 258
+#define OPT_TOS 259
+
static const struct option long_opts[] = {
{ "numeric", 0, 0, 'n' },
{ "resolve", 0, 0, 'r' },
@@ -4800,6 +4823,7 @@ static const struct option long_opts[] = {
{ "contexts", 0, 0, 'z' },
{ "net", 1, 0, 'N' },
{ "tipcinfo", 0, 0, OPT_TIPCINFO},
+ { "tos", 0, 0, OPT_TOS },
{ "kill", 0, 0, 'K' },
{ "no-header", 0, 0, 'H' },
{ 0 }
@@ -4977,6 +5001,9 @@ int main(int argc, char *argv[])
case OPT_TIPCINFO:
show_tipcinfo = 1;
break;
+ case OPT_TOS:
+ show_tos = 1;
+ break;
case 'K':
current_filter.kill = 1;
break;
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH iproute2] ss: add option --tos for requesting ipv4 tos and ipv6 tclass
2019-02-13 12:39 [PATCH iproute2] ss: add option --tos for requesting ipv4 tos and ipv6 tclass Konstantin Khlebnikov
@ 2019-02-13 22:00 ` Stephen Hemminger
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Hemminger @ 2019-02-13 22:00 UTC (permalink / raw)
To: Konstantin Khlebnikov; +Cc: netdev, Eric Dumazet
On Wed, 13 Feb 2019 15:39:01 +0300
Konstantin Khlebnikov <khlebnikov@yandex-team.ru> wrote:
> Also show socket class_id/priority used by classful qdisc.
> Kernel report this together with tclass since commit
> ("inet_diag: fix reporting cgroup classid and fallback to priority")
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Applied, this is useful even if diffserv is not.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-02-13 12:39 [PATCH iproute2] ss: add option --tos for requesting ipv4 tos and ipv6 tclass Konstantin Khlebnikov
2019-02-13 22:00 ` Stephen Hemminger
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