[SCM] Samba Shared Repository - branch master updated
Stefan Metzmacher
metze at samba.org
Wed Mar 25 10:42:02 UTC 2020
The branch, master has been updated
via be394406ee0 lib: Try nonblocking writes in writev_send()
via 79f55ba3271 lib: Use optimize_empty in writev_send()
via 8946531f1f7 winbind: Set the parent->child sock nonblocking
via 0e50ed19360 libsmb: Make sure that the TCP socket is non-blocking
via f52f531771d lib: Remove unused SOCKET_FLAG_BLOCK
via 051b7c135c9 lib: Simplify writev_cancel()
from e2d260c7b42 third_party: Update resolv_wrapper to version 1.1.6
https://git.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit be394406ee016c6bab75fcd96417554468cf495d
Author: Volker Lendecke <vl at samba.org>
Date: Thu Mar 19 17:00:59 2020 +0100
lib: Try nonblocking writes in writev_send()
All callers now use nonblocking sockets, so that we can optimize by
doing early writes
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
Autobuild-User(master): Stefan Metzmacher <metze at samba.org>
Autobuild-Date(master): Wed Mar 25 10:41:29 UTC 2020 on sn-devel-184
commit 79f55ba3271b54068535e97695f5d6065a7048a5
Author: Volker Lendecke <vl at samba.org>
Date: Thu Mar 12 16:20:25 2020 +0100
lib: Use optimize_empty in writev_send()
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit 8946531f1f70c87b17ded5a9b42cf0329fe83fe7
Author: Volker Lendecke <vl at samba.org>
Date: Fri Mar 20 12:17:08 2020 +0100
winbind: Set the parent->child sock nonblocking
The parent goes through wb_simple_trans_send(), which deals with short
writes fine.
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit 0e50ed193606c3716bcd3955e6305f6891f34cff
Author: Volker Lendecke <vl at samba.org>
Date: Fri Mar 20 11:46:43 2020 +0100
libsmb: Make sure that the TCP socket is non-blocking
All traffic goes through smbXcli_base.c, and that is prepared to deal
with short writes via the conn->outgoing queue. Instead of making sure
that all callers properly set the socket nonblocking, do it here, so
that we can later optimize sending out data to the server.
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit f52f531771d6a25b2e363384bf94a9fa14334e1b
Author: Volker Lendecke <vl at samba.org>
Date: Fri Mar 20 11:31:15 2020 +0100
lib: Remove unused SOCKET_FLAG_BLOCK
Nobody in the code set this flag, so remove it
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit 051b7c135c959dad8b19c69aa372c7060e39ff19
Author: Volker Lendecke <vl at samba.org>
Date: Thu Mar 12 11:42:41 2020 +0100
lib: Simplify writev_cancel()
We can only reasonably cancel a writev request that is still
queued. Once writing has started, cancel is pointless. Simplify the
if-conditions.
Signed-off-by: Volker Lendecke <vl at samba.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
-----------------------------------------------------------------------
Summary of changes:
lib/async_req/async_sock.c | 91 ++++++++++++++++++++++------------------
libcli/smb/smbXcli_base.c | 1 +
source3/winbindd/winbindd_dual.c | 1 +
source4/lib/socket/socket.c | 5 +--
source4/lib/socket/socket.h | 1 -
source4/lib/socket/socket_ip.c | 49 +++++++++-------------
source4/lib/socket/socket_unix.c | 28 +++++--------
7 files changed, 85 insertions(+), 91 deletions(-)
Changeset truncated at 500 lines:
diff --git a/lib/async_req/async_sock.c b/lib/async_req/async_sock.c
index e436d00ac79..8f04a7bcbae 100644
--- a/lib/async_req/async_sock.c
+++ b/lib/async_req/async_sock.c
@@ -291,11 +291,14 @@ struct tevent_req *writev_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
return req;
}
- state->queue_entry = tevent_queue_add_entry(queue, ev, req,
- writev_trigger, NULL);
+ state->queue_entry = tevent_queue_add_optimize_empty(
+ queue, ev, req, writev_trigger, NULL);
if (tevent_req_nomem(state->queue_entry, req)) {
return tevent_req_post(req, ev);
}
+ if (!tevent_req_is_in_progress(req)) {
+ return tevent_req_post(req, ev);
+ }
return req;
}
@@ -312,35 +315,67 @@ static bool writev_cancel(struct tevent_req *req)
{
struct writev_state *state = tevent_req_data(req, struct writev_state);
- TALLOC_FREE(state->queue_entry);
- TALLOC_FREE(state->fde);
-
- if (state->count == 0) {
- /*
- * already completed.
- */
- return false;
- }
-
- tevent_req_defer_callback(req, state->ev);
if (state->total_size > 0) {
/*
* We've already started to write :-(
*/
- tevent_req_error(req, EIO);
return false;
}
+ TALLOC_FREE(state->queue_entry);
+ TALLOC_FREE(state->fde);
+
+ tevent_req_defer_callback(req, state->ev);
tevent_req_error(req, ECANCELED);
return true;
}
+static void writev_do(struct tevent_req *req, struct writev_state *state)
+{
+ ssize_t written;
+ bool ok;
+
+ written = writev(state->fd, state->iov, state->count);
+ if ((written == -1) &&
+ ((errno == EINTR) ||
+ (errno == EAGAIN) ||
+ (errno == EWOULDBLOCK))) {
+ /* retry after going through the tevent loop */
+ return;
+ }
+ if (written == -1) {
+ tevent_req_error(req, errno);
+ return;
+ }
+ if (written == 0) {
+ tevent_req_error(req, EPIPE);
+ return;
+ }
+ state->total_size += written;
+
+ ok = iov_advance(&state->iov, &state->count, written);
+ if (!ok) {
+ tevent_req_error(req, EIO);
+ return;
+ }
+
+ if (state->count == 0) {
+ tevent_req_done(req);
+ return;
+ }
+}
+
static void writev_trigger(struct tevent_req *req, void *private_data)
{
struct writev_state *state = tevent_req_data(req, struct writev_state);
state->queue_entry = NULL;
+ writev_do(req, state);
+ if (!tevent_req_is_in_progress(req)) {
+ return;
+ }
+
state->fde = tevent_add_fd(state->ev, state, state->fd, state->flags,
writev_handler, req);
if (tevent_req_nomem(state->fde, req)) {
@@ -355,8 +390,6 @@ static void writev_handler(struct tevent_context *ev, struct tevent_fd *fde,
private_data, struct tevent_req);
struct writev_state *state =
tevent_req_data(req, struct writev_state);
- ssize_t written;
- bool ok;
if ((state->flags & TEVENT_FD_READ) && (flags & TEVENT_FD_READ)) {
int ret, value;
@@ -390,31 +423,7 @@ static void writev_handler(struct tevent_context *ev, struct tevent_fd *fde,
}
}
- written = writev(state->fd, state->iov, state->count);
- if ((written == -1) && (errno == EINTR)) {
- /* retry */
- return;
- }
- if (written == -1) {
- tevent_req_error(req, errno);
- return;
- }
- if (written == 0) {
- tevent_req_error(req, EPIPE);
- return;
- }
- state->total_size += written;
-
- ok = iov_advance(&state->iov, &state->count, written);
- if (!ok) {
- tevent_req_error(req, EIO);
- return;
- }
-
- if (state->count == 0) {
- tevent_req_done(req);
- return;
- }
+ writev_do(req, state);
}
ssize_t writev_recv(struct tevent_req *req, int *perrno)
diff --git a/libcli/smb/smbXcli_base.c b/libcli/smb/smbXcli_base.c
index 0115cbbec18..895fa64fcf5 100644
--- a/libcli/smb/smbXcli_base.c
+++ b/libcli/smb/smbXcli_base.c
@@ -338,6 +338,7 @@ struct smbXcli_conn *smbXcli_conn_create(TALLOC_CTX *mem_ctx,
return NULL;
}
+ set_blocking(fd, false);
conn->sock_fd = fd;
conn->remote_name = talloc_strdup(conn, remote_name);
diff --git a/source3/winbindd/winbindd_dual.c b/source3/winbindd/winbindd_dual.c
index 8188ed097df..8ad2485324e 100644
--- a/source3/winbindd/winbindd_dual.c
+++ b/source3/winbindd/winbindd_dual.c
@@ -1688,6 +1688,7 @@ static bool fork_domain_child(struct winbindd_child *child)
}
child->sock = fdpair[1];
+ set_blocking(child->sock, false);
return True;
}
diff --git a/source4/lib/socket/socket.c b/source4/lib/socket/socket.c
index d7535bf357a..26f23f56653 100644
--- a/source4/lib/socket/socket.c
+++ b/source4/lib/socket/socket.c
@@ -79,15 +79,14 @@ _PUBLIC_ NTSTATUS socket_create_with_ops(TALLOC_CTX *mem_ctx, const struct socke
send calls on non-blocking sockets will randomly recv/send
less data than requested */
- if (!(flags & SOCKET_FLAG_BLOCK) &&
- type == SOCKET_TYPE_STREAM &&
+ if (type == SOCKET_TYPE_STREAM &&
getenv("SOCKET_TESTNONBLOCK") != NULL) {
(*new_sock)->flags |= SOCKET_FLAG_TESTNONBLOCK;
}
/* we don't do a connect() on dgram sockets, so need to set
non-blocking at socket create time */
- if (!(flags & SOCKET_FLAG_BLOCK) && type == SOCKET_TYPE_DGRAM) {
+ if (type == SOCKET_TYPE_DGRAM) {
set_blocking(socket_get_fd(*new_sock), false);
}
diff --git a/source4/lib/socket/socket.h b/source4/lib/socket/socket.h
index a492bc10367..d0fb5e0bfca 100644
--- a/source4/lib/socket/socket.h
+++ b/source4/lib/socket/socket.h
@@ -98,7 +98,6 @@ enum socket_state {
SOCKET_STATE_SERVER_ERROR
};
-#define SOCKET_FLAG_BLOCK 0x00000001
#define SOCKET_FLAG_PEEK 0x00000002
#define SOCKET_FLAG_TESTNONBLOCK 0x00000004
#define SOCKET_FLAG_ENCRYPT 0x00000008 /* This socket
diff --git a/source4/lib/socket/socket_ip.c b/source4/lib/socket/socket_ip.c
index 2aba491e06c..762ec3d48c4 100644
--- a/source4/lib/socket/socket_ip.c
+++ b/source4/lib/socket/socket_ip.c
@@ -81,11 +81,9 @@ static NTSTATUS ip_connect_complete(struct socket_context *sock, uint32_t flags)
return map_nt_error_from_unix_common(error);
}
- if (!(flags & SOCKET_FLAG_BLOCK)) {
- ret = set_blocking(sock->fd, false);
- if (ret == -1) {
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(sock->fd, false);
+ if (ret == -1) {
+ return map_nt_error_from_unix_common(errno);
}
sock->state = SOCKET_STATE_CLIENT_CONNECTED;
@@ -201,11 +199,9 @@ static NTSTATUS ipv4_listen(struct socket_context *sock,
}
}
- if (!(flags & SOCKET_FLAG_BLOCK)) {
- ret = set_blocking(sock->fd, false);
- if (ret == -1) {
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(sock->fd, false);
+ if (ret == -1) {
+ return map_nt_error_from_unix_common(errno);
}
sock->state= SOCKET_STATE_SERVER_LISTEN;
@@ -217,7 +213,7 @@ static NTSTATUS ipv4_accept(struct socket_context *sock, struct socket_context *
{
struct sockaddr_in cli_addr;
socklen_t cli_addr_len = sizeof(cli_addr);
- int new_fd;
+ int new_fd, ret;
if (sock->type != SOCKET_TYPE_STREAM) {
return NT_STATUS_INVALID_PARAMETER;
@@ -228,13 +224,12 @@ static NTSTATUS ipv4_accept(struct socket_context *sock, struct socket_context *
return map_nt_error_from_unix_common(errno);
}
- if (!(sock->flags & SOCKET_FLAG_BLOCK)) {
- int ret = set_blocking(new_fd, false);
- if (ret == -1) {
- close(new_fd);
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(new_fd, false);
+ if (ret == -1) {
+ close(new_fd);
+ return map_nt_error_from_unix_common(errno);
}
+
smb_set_close_on_exec(new_fd);
@@ -731,11 +726,9 @@ static NTSTATUS ipv6_listen(struct socket_context *sock,
}
}
- if (!(flags & SOCKET_FLAG_BLOCK)) {
- ret = set_blocking(sock->fd, false);
- if (ret == -1) {
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(sock->fd, false);
+ if (ret == -1) {
+ return map_nt_error_from_unix_common(errno);
}
sock->state= SOCKET_STATE_SERVER_LISTEN;
@@ -747,7 +740,7 @@ static NTSTATUS ipv6_tcp_accept(struct socket_context *sock, struct socket_conte
{
struct sockaddr_in6 cli_addr;
socklen_t cli_addr_len = sizeof(cli_addr);
- int new_fd;
+ int new_fd, ret;
if (sock->type != SOCKET_TYPE_STREAM) {
return NT_STATUS_INVALID_PARAMETER;
@@ -758,12 +751,10 @@ static NTSTATUS ipv6_tcp_accept(struct socket_context *sock, struct socket_conte
return map_nt_error_from_unix_common(errno);
}
- if (!(sock->flags & SOCKET_FLAG_BLOCK)) {
- int ret = set_blocking(new_fd, false);
- if (ret == -1) {
- close(new_fd);
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(new_fd, false);
+ if (ret == -1) {
+ close(new_fd);
+ return map_nt_error_from_unix_common(errno);
}
smb_set_close_on_exec(new_fd);
diff --git a/source4/lib/socket/socket_unix.c b/source4/lib/socket/socket_unix.c
index 6876e395ed6..d4946d88eeb 100644
--- a/source4/lib/socket/socket_unix.c
+++ b/source4/lib/socket/socket_unix.c
@@ -84,11 +84,9 @@ static NTSTATUS unixdom_connect_complete(struct socket_context *sock, uint32_t f
return map_nt_error_from_unix_common(error);
}
- if (!(flags & SOCKET_FLAG_BLOCK)) {
- ret = set_blocking(sock->fd, false);
- if (ret == -1) {
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(sock->fd, false);
+ if (ret == -1) {
+ return map_nt_error_from_unix_common(errno);
}
sock->state = SOCKET_STATE_CLIENT_CONNECTED;
@@ -163,11 +161,9 @@ static NTSTATUS unixdom_listen(struct socket_context *sock,
}
}
- if (!(flags & SOCKET_FLAG_BLOCK)) {
- ret = set_blocking(sock->fd, false);
- if (ret == -1) {
- return unixdom_error(errno);
- }
+ ret = set_blocking(sock->fd, false);
+ if (ret == -1) {
+ return unixdom_error(errno);
}
sock->state = SOCKET_STATE_SERVER_LISTEN;
@@ -181,7 +177,7 @@ static NTSTATUS unixdom_accept(struct socket_context *sock,
{
struct sockaddr_un cli_addr;
socklen_t cli_addr_len = sizeof(cli_addr);
- int new_fd;
+ int new_fd, ret;
if (sock->type != SOCKET_TYPE_STREAM) {
return NT_STATUS_INVALID_PARAMETER;
@@ -192,12 +188,10 @@ static NTSTATUS unixdom_accept(struct socket_context *sock,
return unixdom_error(errno);
}
- if (!(sock->flags & SOCKET_FLAG_BLOCK)) {
- int ret = set_blocking(new_fd, false);
- if (ret == -1) {
- close(new_fd);
- return map_nt_error_from_unix_common(errno);
- }
+ ret = set_blocking(new_fd, false);
+ if (ret == -1) {
+ close(new_fd);
+ return map_nt_error_from_unix_common(errno);
}
smb_set_close_on_exec(new_fd);
--
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