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swap sockets to use send/recv and update seccomp.

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This commit is contained in:
Joris Vink 2019-09-26 07:52:31 +00:00
parent 0314521658
commit c6c253305a
4 changed files with 9 additions and 6 deletions
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5
src/keymgr.c
View File

@ -60,6 +60,7 @@ static struct sock_filter filter_keymgr[] = {
/* Required to deal with private keys and certs. */
KORE_SYSCALL_ALLOW(open),
KORE_SYSCALL_ALLOW(read),
KORE_SYSCALL_ALLOW(write),
KORE_SYSCALL_ALLOW(close),
KORE_SYSCALL_ALLOW(fstat),
KORE_SYSCALL_ALLOW(futex),
@ -67,8 +68,8 @@ static struct sock_filter filter_keymgr[] = {
/* Net related. */
KORE_SYSCALL_ALLOW(poll),
KORE_SYSCALL_ALLOW(read),
KORE_SYSCALL_ALLOW(write),
KORE_SYSCALL_ALLOW(sendto),
KORE_SYSCALL_ALLOW(recvfrom),
KORE_SYSCALL_ALLOW(epoll_wait),
/* Process things. */

6
src/net.c
View File

@ -424,7 +424,7 @@ net_write(struct connection *c, size_t len, size_t *written)
{
ssize_t r;
r = write(c->fd, (c->snb->buf + c->snb->s_off), len);
r = send(c->fd, (c->snb->buf + c->snb->s_off), len, 0);
if (r == -1) {
switch (errno) {
case EINTR:
@ -449,8 +449,8 @@ net_read(struct connection *c, size_t *bytes)
{
ssize_t r;
r = read(c->fd, (c->rnb->buf + c->rnb->s_off),
(c->rnb->b_len - c->rnb->s_off));
r = recv(c->fd, (c->rnb->buf + c->rnb->s_off),
(c->rnb->b_len - c->rnb->s_off), 0);
if (r == -1) {
switch (errno) {
case EINTR:

2
src/seccomp.c
View File

@ -76,8 +76,10 @@ static struct sock_filter filter_kore[] = {
/* Net related. */
KORE_SYSCALL_ALLOW(poll),
KORE_SYSCALL_ALLOW(sendto),
KORE_SYSCALL_ALLOW(accept),
KORE_SYSCALL_ALLOW(sendfile),
KORE_SYSCALL_ALLOW(recvfrom),
KORE_SYSCALL_ALLOW(epoll_ctl),
KORE_SYSCALL_ALLOW(setsockopt),
KORE_SYSCALL_ALLOW(epoll_wait),

2
src/tasks.c
View File

@ -279,7 +279,7 @@ task_channel_write(int fd, void *data, u_int32_t len)
d = data;
offset = 0;
while (offset != len) {
r = write(fd, d + offset, len - offset);
r = send(fd, d + offset, len - offset, 0);
if (r == -1 && errno == EINTR)
continue;
if (r == -1)