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authorJakub Kicinski2021-11-01 20:05:14 -0700
committerJakub Kicinski2021-11-01 20:05:14 -0700
commit8a33dcc2f6d5cf60cc77b72c277d1eba8e4ac8fb (patch)
tree83f899fd5d970d220e04da03b045fd46261437f1 /net/sctp
parentb7b98f868987cd3e86c9bd9a6db048614933d7a0 (diff)
parent6b278c0cb378079f3c0c61ae4a369c09ff1a4188 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in the fixes we had queued in case there was another -rc. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/output.c13
-rw-r--r--net/sctp/transport.c11
2 files changed, 14 insertions, 10 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 4dfb5ea82b05..cdfdbd353c67 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -581,13 +581,16 @@ int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp)
chunk = list_entry(packet->chunk_list.next, struct sctp_chunk, list);
sk = chunk->skb->sk;
- /* check gso */
if (packet->size > tp->pathmtu && !packet->ipfragok && !chunk->pmtu_probe) {
- if (!sk_can_gso(sk)) {
- pr_err_once("Trying to GSO but underlying device doesn't support it.");
- goto out;
+ if (tp->pl.state == SCTP_PL_ERROR) { /* do IP fragmentation if in Error state */
+ packet->ipfragok = 1;
+ } else {
+ if (!sk_can_gso(sk)) { /* check gso */
+ pr_err_once("Trying to GSO but underlying device doesn't support it.");
+ goto out;
+ }
+ gso = 1;
}
- gso = 1;
}
/* alloc head skb */
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index a3d3ca6dd63d..133f1719bf1b 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -269,7 +269,7 @@ bool sctp_transport_pl_send(struct sctp_transport *t)
if (t->pl.probe_size == SCTP_BASE_PLPMTU) { /* BASE_PLPMTU Confirmation Failed */
t->pl.state = SCTP_PL_ERROR; /* Base -> Error */
- t->pl.pmtu = SCTP_MIN_PLPMTU;
+ t->pl.pmtu = SCTP_BASE_PLPMTU;
t->pathmtu = t->pl.pmtu + sctp_transport_pl_hlen(t);
sctp_assoc_sync_pmtu(t->asoc);
}
@@ -366,8 +366,9 @@ static bool sctp_transport_pl_toobig(struct sctp_transport *t, u32 pmtu)
if (pmtu >= SCTP_MIN_PLPMTU && pmtu < SCTP_BASE_PLPMTU) {
t->pl.state = SCTP_PL_ERROR; /* Base -> Error */
- t->pl.pmtu = SCTP_MIN_PLPMTU;
+ t->pl.pmtu = SCTP_BASE_PLPMTU;
t->pathmtu = t->pl.pmtu + sctp_transport_pl_hlen(t);
+ return true;
}
} else if (t->pl.state == SCTP_PL_SEARCH) {
if (pmtu >= SCTP_BASE_PLPMTU && pmtu < t->pl.pmtu) {
@@ -378,11 +379,10 @@ static bool sctp_transport_pl_toobig(struct sctp_transport *t, u32 pmtu)
t->pl.probe_high = 0;
t->pl.pmtu = SCTP_BASE_PLPMTU;
t->pathmtu = t->pl.pmtu + sctp_transport_pl_hlen(t);
+ return true;
} else if (pmtu > t->pl.pmtu && pmtu < t->pl.probe_size) {
t->pl.probe_size = pmtu;
t->pl.probe_count = 0;
-
- return false;
}
} else if (t->pl.state == SCTP_PL_COMPLETE) {
if (pmtu >= SCTP_BASE_PLPMTU && pmtu < t->pl.pmtu) {
@@ -393,10 +393,11 @@ static bool sctp_transport_pl_toobig(struct sctp_transport *t, u32 pmtu)
t->pl.probe_high = 0;
t->pl.pmtu = SCTP_BASE_PLPMTU;
t->pathmtu = t->pl.pmtu + sctp_transport_pl_hlen(t);
+ return true;
}
}
- return true;
+ return false;
}
bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)