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tnt gerrit-no-reply at lists.osmocom.orgtnt has submitted this change. ( https://gerrit.osmocom.org/c/libosmo-netif/+/18097 ) Change subject: stream: Attempt to workaround kernel ABI breakage ...................................................................... stream: Attempt to workaround kernel ABI breakage See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/uapi/linux/sctp.h?id=b6e6b5f1da7e8d092f86a4351802c27c0170c5a5 and https://marc.info/?l=linux-sctp&m=158729301516157&w=2 A kernel structure changed size, a new field was added at the end. Attempt to submit with the known "old" size. Signed-off-by: Sylvain Munaut <tnt at 246tNt.com> Change-Id: Ia95dd1f9ffed9f743c049e05797b1a6f1f9f8c69 --- M src/stream.c 1 file changed, 16 insertions(+), 0 deletions(-) Approvals: Jenkins Builder: Verified laforge: Looks good to me, but someone else must approve pespin: Looks good to me, approved diff --git a/src/stream.c b/src/stream.c index 65532d3..5887bf9 100644 --- a/src/stream.c +++ b/src/stream.c @@ -92,6 +92,22 @@ rc = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(event)); + /* + * Attempt to work around kernel ABI breakage + * + * In kernel commit b6e6b5f1da7e8d092f86a4351802c27c0170c5a5, the + * struct sctp_event_subscribe had a u8 field added to it at the end, thus + * breaking ABI. + * See https://marc.info/?l=linux-sctp&m=158729301516157&w=2 for discussion. + * + * We attempt to work around the issue where the kernel header are new + * and running kernel is old, by forcing the size of the struct to 13 which + * is the "old" size + */ + if ((rc < 0) && (sizeof(event) != 13)) + rc = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, + &event, 13); + if (rc < 0) LOGP(DLINP, LOGL_ERROR, "couldn't activate SCTP events " "on FD %u\n", fd); -- To view, visit https://gerrit.osmocom.org/c/libosmo-netif/+/18097 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-netif Gerrit-Branch: master Gerrit-Change-Id: Ia95dd1f9ffed9f743c049e05797b1a6f1f9f8c69 Gerrit-Change-Number: 18097 Gerrit-PatchSet: 4 Gerrit-Owner: tnt <tnt at 246tNt.com> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge at osmocom.org> Gerrit-Reviewer: pespin <pespin at sysmocom.de> Gerrit-Reviewer: tnt <tnt at 246tNt.com> Gerrit-MessageType: merged -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20200508/1710b709/attachment.htm>