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s3:unix_msg: add fds-array to unix_msg_send() for fd passing
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org> Signed-off-by: Stefan Metzmacher <metze@samba.org> Signed-off-by: Michael Adam <obnox@samba.org>
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parent
c689547c93
commit
1b35d2ed63
source3/lib
@ -318,7 +318,7 @@ int messaging_dgm_send(pid_t pid, const struct iovec *iov, int iovlen)
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DEBUG(10, ("%s: Sending message to %u\n", __func__, (unsigned)pid));
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ret = unix_msg_send(ctx->dgm_ctx, &dst, iov, iovlen);
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ret = unix_msg_send(ctx->dgm_ctx, &dst, iov, iovlen, NULL, 0);
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return ret;
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}
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@ -65,7 +65,7 @@ int main(int argc, const char *argv[])
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unsigned j;
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for (j=0; j<100000; j++) {
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ret = unix_msg_send(ctxs[i], &dst, &iov, 1);
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ret = unix_msg_send(ctxs[i], &dst, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -103,7 +103,7 @@ int main(void)
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state.buf = NULL;
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state.buflen = 0;
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ret = unix_msg_send(ctx1, &addr2, NULL, 0);
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ret = unix_msg_send(ctx1, &addr2, NULL, 0, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -120,7 +120,7 @@ int main(void)
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state.buf = &msg;
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state.buflen = sizeof(msg);
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ret = unix_msg_send(ctx1, &addr2, &iov, 1);
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ret = unix_msg_send(ctx1, &addr2, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -141,13 +141,13 @@ int main(void)
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state.buflen = sizeof(buf);
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for (i=0; i<3; i++) {
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ret = unix_msg_send(ctx1, &addr2, &iov, 1);
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ret = unix_msg_send(ctx1, &addr2, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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return 1;
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}
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ret = unix_msg_send(ctx2, &addr2, &iov, 1);
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ret = unix_msg_send(ctx2, &addr2, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -186,7 +186,7 @@ int main(void)
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j++;
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}
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ret = unix_msg_send(ctx1, &addr1, iovs, j);
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ret = unix_msg_send(ctx1, &addr1, iovs, j, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -199,13 +199,13 @@ int main(void)
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printf("Filling send queues before freeing\n");
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for (i=0; i<5; i++) {
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ret = unix_msg_send(ctx1, &addr2, &iov, 1);
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ret = unix_msg_send(ctx1, &addr2, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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return 1;
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}
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ret = unix_msg_send(ctx1, &addr1, &iov, 1);
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ret = unix_msg_send(ctx1, &addr1, &iov, 1, NULL, 0);
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if (ret != 0) {
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fprintf(stderr, "unix_msg_send failed: %s\n",
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strerror(ret));
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@ -851,7 +851,8 @@ int unix_msg_init(const struct sockaddr_un *addr,
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}
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int unix_msg_send(struct unix_msg_ctx *ctx, const struct sockaddr_un *dst,
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const struct iovec *iov, int iovlen)
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const struct iovec *iov, int iovlen,
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const int *fds, size_t num_fds)
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{
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ssize_t msglen;
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size_t sent;
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@ -869,6 +870,16 @@ int unix_msg_send(struct unix_msg_ctx *ctx, const struct sockaddr_un *dst,
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return EINVAL;
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}
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#ifndef HAVE_STRUCT_MSGHDR_MSG_CONTROL
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if (num_fds > 0) {
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return ENOSYS;
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}
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#endif /* ! HAVE_STRUCT_MSGHDR_MSG_CONTROL */
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if (num_fds > INT8_MAX) {
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return EINVAL;
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}
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if (msglen <= (ctx->fragment_len - sizeof(uint64_t))) {
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uint64_t cookie = 0;
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@ -880,7 +891,7 @@ int unix_msg_send(struct unix_msg_ctx *ctx, const struct sockaddr_un *dst,
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}
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return unix_dgram_send(ctx->dgram, dst, iov_copy, iovlen+1,
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NULL, 0);
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fds, num_fds);
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}
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hdr = (struct unix_msg_hdr) {
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@ -936,8 +947,19 @@ int unix_msg_send(struct unix_msg_ctx *ctx, const struct sockaddr_un *dst,
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}
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sent += (fragment_len - sizeof(ctx->cookie) - sizeof(hdr));
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ret = unix_dgram_send(ctx->dgram, dst, iov_copy, iov_index,
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NULL, 0);
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/*
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* only the last fragment should pass the fd array.
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* That simplifies the receiver a lot.
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*/
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if (sent < msglen) {
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ret = unix_dgram_send(ctx->dgram, dst,
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iov_copy, iov_index,
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NULL, 0);
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} else {
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ret = unix_dgram_send(ctx->dgram, dst,
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iov_copy, iov_index,
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fds, num_fds);
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}
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if (ret != 0) {
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break;
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}
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@ -93,11 +93,14 @@ int unix_msg_init(const struct sockaddr_un *addr,
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* @param[in] dst_sock The destination socket path
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* @param[in] iov The message
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* @param[in] iovlen The number of iov structs
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* @param[in] fds - optional fd array
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* @param[in] num_fds - fd array size
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* @return 0 on success, errno on failure
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*/
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int unix_msg_send(struct unix_msg_ctx *ctx, const struct sockaddr_un *dst,
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const struct iovec *iov, int iovlen);
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const struct iovec *iov, int iovlen,
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const int *fds, size_t num_fds);
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/**
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* @brief Free a unix_msg_ctx
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