sctp: support sctp_diag in kernel
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- v3 Latest6 patches 5 repliesIn review
- v26 patches 15 repliesSuperseded
- v17 patches 6 repliesSuperseded
Changes in v3 from the cover letter
do some improvements and fixes in patch 1-4, see the details in each patch's comment.
Patches in v3 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/6 | sctp: add sctp_info dump api for sctp_diaginclude/ include/ net/ | +156 | 3 replies | |
| 2/6 | sctp: export some apis or variables for sctp_diag and reuse some for procinclude/ net/ net/ | +156 | 0 replies | |
| 3/6 | sctp: export some functions for sctp_diag in inet_diagnet/ | +41 | 0 replies | |
| 4/6 | sctp: add the sctp_diag.c fileinclude/ net/ net/ +1 more | +504 | 1 reply | |
| 5/6 | sctp: merge the seq_start/next/exits in remaddrs and assocsnet/ | +9 | 0 replies | |
| 6/6 | sctp: fix some rhashtable functions using in sctp proc/diagnet/ net/ | +16 | 0 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v3 yet.
Cover letter [PATCHv3 net-next 0/6] sctp: support sctp_diag in kernel
This patchset will add sctp_diag module to implement diag interface on sctp in kernel.
For a listening sctp endpoint, we will just dump it's ep info. For a sctp connection, we will the assoc info and it's ep info.
The ss dump will looks like:
[iproute2]# ./misc/ss --sctp -n -l
State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 172.16.254.254:8888 *:* LISTEN 0 5 127.0.0.1:1234 *:* LISTEN 0 5 127.0.0.1:1234 *:* - ESTAB 0 0 127.0.0.1%lo:1234 127.0.0.1:4321 LISTEN 0 128 172.16.254.254:8888 *:* - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.253.253:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.1.1:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.1.2:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.2.1:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.2.2:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.3.1:8888 - ESTAB 0 0 172.16.254.254%eth1:8888 172.16.3.2:8888 LISTEN 0 0 127.0.0.1:4321 *:* - ESTAB 0 0 127.0.0.1%lo:4321 127.0.0.1:1234
The entries with '- ESTAB' are the assocs, some of them may belong to the same endpoint. So we will dump the parent endpoint first, like the entry with 'LISTEN'. then dump the assocs. ep and assocs entries will be dumped in right order so that ss can show them in tree format easily.
Besides, this patchset also simplifies sctp proc codes, cause it has some similar codes with sctp diag in sctp transport traversal.
v1->v2:
1. inet_diag_get_handler needs to return it as const.
2. merge 5/7 into 2/7 of v1.
v2->v3:
do some improvements and fixes in patch 1-4, see the details in each patch's comment.
Xin Long (6):
sctp: add sctp_info dump api for sctp_diag
sctp: export some apis or variables for sctp_diag and reuse some for
proc
sctp: export some functions for sctp_diag in inet_diag
sctp: add the sctp_diag.c file
sctp: merge the seq_start/next/exits in remaddrs and assocs
sctp: fix some rhashtable functions using in sctp proc/diag
include/linux/sctp.h | 67 ++++++ include/net/sctp/sctp.h | 16 ++ include/uapi/linux/inet_diag.h | 2 + net/ipv4/inet_diag.c | 67 +++--- net/sctp/Kconfig | 4 + net/sctp/Makefile | 1 + net/sctp/proc.c | 105 ++------- net/sctp/sctp_diag.c | 497 +++++++++++++++++++++++++++++++++++++++++ net/sctp/socket.c | 216 ++++++++++++++++++ 9 files changed, 863 insertions(+), 112 deletions(-) create mode 100644 net/sctp/sctp_diag.c
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