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sd-netlink: do not use serials currently queued

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This commit is contained in:
Yu Watanabe 2022-11-26 10:14:00 +09:00
parent 7b34bae3b1
commit 2b176edc74
1 changed files with 10 additions and 1 deletions
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11
src/libsystemd/sd-netlink/netlink-util.c
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@ -673,6 +673,15 @@ int netlink_open_family(sd_netlink **ret, int family) {
return 0;
}
static bool serial_used(sd_netlink *nl, uint32_t serial) {
assert(nl);
return
hashmap_contains(nl->reply_callbacks, UINT32_TO_PTR(serial)) ||
hashmap_contains(nl->rqueue_by_serial, UINT32_TO_PTR(serial)) ||
hashmap_contains(nl->rqueue_partial_by_serial, UINT32_TO_PTR(serial));
}
void netlink_seal_message(sd_netlink *nl, sd_netlink_message *m) {
uint32_t picked;
@ -689,7 +698,7 @@ void netlink_seal_message(sd_netlink *nl, sd_netlink_message *m) {
such messages */
nl->serial = nl->serial == UINT32_MAX ? 1 : nl->serial + 1;
} while (hashmap_contains(nl->reply_callbacks, UINT32_TO_PTR(picked)));
} while (serial_used(nl, picked));
m->hdr->nlmsg_seq = picked;
message_seal(m);