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osmo_io: Reject writing messages with length of 0 

io_uring will reject to transmit messages with length of 0.

Change-Id: I94be5ec7344d92157f7853c6c0ddf7007513ba8e
Related: OS#5751
This commit is contained in:
Andreas Eversberg 2024-02-09 14:36:30 +01:00
parent 00c462cee5
commit 4f01ae3d62
1 changed files with 15 additions and 0 deletions
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15
src/core/osmo_io.c
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@ -421,6 +421,11 @@ int osmo_iofd_write_msgb(struct osmo_io_fd *iofd, struct msgb *msg)
{
int rc;
if (OSMO_UNLIKELY(msgb_length(msg) == 0)) {
LOGPIO(iofd, LOGL_ERROR, "Length is 0, rejecting msgb.\n");
return -EINVAL;
}
OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_READ_WRITE);
if (OSMO_UNLIKELY(!iofd->io_ops.write_cb)) {
LOGPIO(iofd, LOGL_ERROR, "write_cb not set, Rejecting msgb\n");
@ -463,6 +468,11 @@ int osmo_iofd_sendto_msgb(struct osmo_io_fd *iofd, struct msgb *msg, int sendto_
{
int rc;
if (OSMO_UNLIKELY(msgb_length(msg) == 0)) {
LOGPIO(iofd, LOGL_ERROR, "Length is 0, rejecting msgb.\n");
return -EINVAL;
}
OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_RECVFROM_SENDTO);
if (OSMO_UNLIKELY(!iofd->io_ops.sendto_cb)) {
LOGPIO(iofd, LOGL_ERROR, "sendto_cb not set, Rejecting msgb\n");
@ -511,6 +521,11 @@ int osmo_iofd_sctp_send_msgb(struct osmo_io_fd *iofd, struct msgb *msg, int send
struct cmsghdr *cmsg;
struct sctp_sndrcvinfo *sinfo;
if (OSMO_UNLIKELY(msgb_length(msg) == 0)) {
LOGPIO(iofd, LOGL_ERROR, "Length is 0, rejecting msgb.\n");
return -EINVAL;
}
OSMO_ASSERT(iofd->mode == OSMO_IO_FD_MODE_SCTP_RECVMSG_SEND);
if (OSMO_UNLIKELY(!iofd->io_ops.write_cb)) {
LOGPIO(iofd, LOGL_ERROR, "write_cb not set, Rejecting msgb\n");