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udp: Correct some seccomp filter annotations

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Both udp_buf_listen_sock_data() and udp_buf_reply_sock_data() have comments
stating they use recvmmsg().  That's not correct, they only do so via
udp_sock_recv() which lists recvmmsg() itself.

In contrast udp_splice_send() and udp_tap_handler() both directly use
sendmmsg(), but only the latter lists it.  Add it to the former as well.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2025-04-01 19:57:10 +11:00 • committed by Stefano Brivio
parent 76e554d9ec
commit 684870a766
1 changed files with 2 additions and 4 deletions

6
udp.c
View file

@ -272,6 +272,8 @@ static void udp_splice_prepare(struct mmsghdr *mmh, unsigned idx)
* @dst: Destination port for datagrams (target side)
* @ref: epoll reference for origin socket
* @now: Timestamp
*
* #syscalls sendmmsg
*/
static void udp_splice_send(const struct ctx *c, size_t start, size_t n,
flow_sidx_t tosidx)
@ -662,8 +664,6 @@ static int udp_sock_recv(const struct ctx *c, int s, struct mmsghdr *mmh)
* @c: Execution context
* @ref: epoll reference
* @now: Current timestamp
*
* #syscalls recvmmsg
*/
static void udp_buf_listen_sock_data(const struct ctx *c, union epoll_ref ref,
const struct timespec *now)
@ -760,8 +760,6 @@ void udp_listen_sock_handler(const struct ctx *c,
* @tosidx: Flow & side to forward data from @s to
*
* Return: true on success, false if can't forward from socket to flow's pif
*
* #syscalls recvmmsg
*/
static bool udp_buf_reply_sock_data(const struct ctx *c,
int s, flow_sidx_t tosidx)