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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. ( https://gerrit.osmocom.org/9510 ) Change subject: bsc-nat: ipaccess_auth_bsc: Close bsc conn immediately on bad format received ...................................................................... bsc-nat: ipaccess_auth_bsc: Close bsc conn immediately on bad format received This commit changes behaviour to a (imho) better logic and is a preparation for follow-up commits to avoid heap-use-after-free error when closing the bsc connection. Previously, authentication would still not be accepted but the connection would be staying alive for a while until id_timeout timer triggers. Let's close the connection immediately instead, this way BSC side can see quickly something is wrong with what it is sending. Furthermore, this way the logic of the function is simplified: If auth goes well, conn is alive. If auth goes wrong, conn is closed. Change-Id: I972961b8967076c56c607f98c2360054144951e4 --- M openbsc/src/osmo-bsc_nat/bsc_nat.c 1 file changed, 2 insertions(+), 0 deletions(-) Approvals: Jenkins Builder: Verified Harald Welte: Looks good to me, approved diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c index 373ba97..fb2ec83 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c @@ -1038,12 +1038,14 @@ if (len <= 0) { LOGP(DNAT, LOGL_ERROR, "Token with length zero on fd: %d\n", bsc->write_queue.bfd.fd); + bsc_close_connection(bsc); return; } if (token[len - 1] != '\0') { LOGP(DNAT, LOGL_ERROR, "Token not null terminated on fd: %d\n", bsc->write_queue.bfd.fd); + bsc_close_connection(bsc); return; } -- To view, visit https://gerrit.osmocom.org/9510 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: openbsc Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I972961b8967076c56c607f98c2360054144951e4 Gerrit-Change-Number: 9510 Gerrit-PatchSet: 1 Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20180608/d2753948/attachment.htm>