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ss: Show more info (ring,fanout) for packet socks 

Print such info like version, tx/rx ring, fanout for
packet sockets when '-e' option was specified.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
This commit is contained in:
Vadim Kochan 2015-05-15 17:19:30 +03:00 committed by Stephen Hemminger
parent fede6dd9b3
commit 2631b85666
1 changed files with 83 additions and 2 deletions
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85
misc/ss.c
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@ -2834,13 +2834,27 @@ static int packet_stats_print(struct sockstat *s, const struct filter *f)
return 0;
}
static void packet_show_ring(struct packet_diag_ring *ring)
{
printf("blk_size:%d", ring->pdr_block_size);
printf(",blk_nr:%d", ring->pdr_block_nr);
printf(",frm_size:%d", ring->pdr_frame_size);
printf(",frm_nr:%d", ring->pdr_frame_nr);
printf(",tmo:%d", ring->pdr_retire_tmo);
printf(",features:0x%x", ring->pdr_features);
}
static int packet_show_sock(const struct sockaddr_nl *addr,
struct nlmsghdr *nlh, void *arg)
{
const struct filter *f = arg;
struct packet_diag_msg *r = NLMSG_DATA(nlh);
struct packet_diag_info *pinfo = NULL;
struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
struct rtattr *tb[PACKET_DIAG_MAX+1];
struct sockstat stat = {};
uint32_t fanout = 0;
bool has_fanout = false;
parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr*)(r+1),
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
@ -2861,16 +2875,82 @@ static int packet_show_sock(const struct sockaddr_nl *addr,
}
if (tb[PACKET_DIAG_INFO]) {
struct packet_diag_info *pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
stat.lport = stat.iface = pinfo->pdi_index;
}
if (tb[PACKET_DIAG_UID])
stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
if (tb[PACKET_DIAG_RX_RING])
ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
if (tb[PACKET_DIAG_TX_RING])
ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
if (tb[PACKET_DIAG_FANOUT]) {
has_fanout = true;
fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]);
}
if (packet_stats_print(&stat, f))
return 0;
if (show_details) {
if (pinfo) {
printf("\n\tver:%d", pinfo->pdi_version);
printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
printf(" flags( ");
if (pinfo->pdi_flags & PDI_RUNNING)
printf("running");
if (pinfo->pdi_flags & PDI_AUXDATA)
printf(" auxdata");
if (pinfo->pdi_flags & PDI_ORIGDEV)
printf(" origdev");
if (pinfo->pdi_flags & PDI_VNETHDR)
printf(" vnethdr");
if (pinfo->pdi_flags & PDI_LOSS)
printf(" loss");
if (!pinfo->pdi_flags)
printf("0");
printf(" )");
}
if (ring_rx) {
printf("\n\tring_rx(");
packet_show_ring(ring_rx);
printf(")");
}
if (ring_tx) {
printf("\n\tring_tx(");
packet_show_ring(ring_tx);
printf(")");
}
if (has_fanout) {
uint16_t type = (fanout >> 16) & 0xffff;
printf("\n\tfanout(");
printf("id:%d,", fanout & 0xffff);
printf("type:");
if (type == 0)
printf("hash");
else if (type == 1)
printf("lb");
else if (type == 2)
printf("cpu");
else if (type == 3)
printf("roll");
else if (type == 4)
printf("random");
else if (type == 5)
printf("qm");
else
printf("0x%x", type);
printf(")");
}
}
if (show_bpf && tb[PACKET_DIAG_FILTER]) {
struct sock_filter *fil =
RTA_DATA(tb[PACKET_DIAG_FILTER]);
@ -2894,7 +2974,8 @@ static int packet_show_netlink(struct filter *f)
DIAG_REQUEST(req, struct packet_diag_req r);
req.r.sdiag_family = AF_PACKET;
req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | PACKET_SHOW_FILTER;
req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
}