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smbd-server: Handle ip drop event and close listening socket

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Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Vinit Agnihotri 2024-02-28 03:56:23 -08:00 committed by Martin Schwenke
parent bca01b501c
commit 4ef1eb92ed
1 changed files with 29 additions and 0 deletions
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29
source3/smbd/server.c
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@ -1639,6 +1639,33 @@ static void smbd_init_addrchange(TALLOC_CTX *mem_ctx,
tevent_req_set_callback(req, smbd_addr_changed, state);
}
static void smbd_close_socket_for_ip(struct smbd_parent_context *parent,
struct sockaddr_storage *addr)
{
struct smbd_open_socket *s = NULL;
for (s = parent->sockets; s != NULL; s = s->next) {
struct sockaddr_storage a;
socklen_t addr_len = sizeof(a);
if (getsockname(s->fd, (struct sockaddr *)&a, &addr_len) < 0) {
DBG_NOTICE("smbd: Unable to get address - skip\n");
continue;
}
if (sockaddr_equal((struct sockaddr *)&a,
(struct sockaddr *)addr)) {
char addrstr[INET6_ADDRSTRLEN];
DLIST_REMOVE(parent->sockets, s);
TALLOC_FREE(s);
print_sockaddr(addrstr, sizeof(addrstr), addr);
DBG_NOTICE("smbd: Closed listening socket for %s\n",
addrstr);
return;
}
}
}
static void smbd_addr_changed(struct tevent_req *req)
{
struct smbd_addrchanged_state *state = tevent_req_callback_data(
@ -1666,6 +1693,8 @@ static void smbd_addr_changed(struct tevent_req *req)
"on if_index %u\n",
addrstr, if_index);
smbd_close_socket_for_ip(state->parent, &addr);
goto rearm;
}