[SCM] Samba Shared Repository - branch v3-2-test updated -
initial-v3-2-unstable-194-g255c2ad
Jeremy Allison
jra at samba.org
Mon Nov 5 19:20:29 GMT 2007
The branch, v3-2-test has been updated
via 255c2adf7b6ef30932b5bb9f142ccef4a5d3d0db (commit)
from 5721a511d8dd327717bcd9c2053c4bd08f01185c (commit)
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-2-test
- Log -----------------------------------------------------------------
commit 255c2adf7b6ef30932b5bb9f142ccef4a5d3d0db
Author: Jeremy Allison <jra at samba.org>
Date: Mon Nov 5 11:12:56 2007 -0800
Remove the horror that was the global smb_rw_error.
Each cli struct has it's own local copy of this variable,
so use that in client code. In the smbd server, add one
static to smbd/proccess.c and use that inside smbd. Fix
a bunch of places where smb_rw_error could be set by
calling read_data() in places where we weren't reading
from the SMB client socket (ie. winbindd).
Jeremy.
-----------------------------------------------------------------------
Summary of changes:
source/client/client.c | 2 +-
source/include/client.h | 2 +-
source/lib/util_sock.c | 87 ++++++++++++++++++++-------------------
source/libsmb/clientgen.c | 23 +++++-----
source/nmbd/asyncdns.c | 4 +-
source/smbd/chgpasswd.c | 2 +-
source/smbd/process.c | 59 +++++++++++++++++---------
source/smbd/reply.c | 5 +-
source/winbindd/winbindd_dual.c | 4 +-
9 files changed, 104 insertions(+), 84 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source/client/client.c b/source/client/client.c
index 27f120c..94dc52d 100644
--- a/source/client/client.c
+++ b/source/client/client.c
@@ -3711,7 +3711,7 @@ static void readline_callback(void)
session keepalives and then drop them here.
*/
if (FD_ISSET(cli->fd,&fds)) {
- if (!receive_smb(cli->fd,cli->inbuf,0)) {
+ if (!receive_smb(cli->fd,cli->inbuf,0,&cli->smb_rw_error)) {
DEBUG(0, ("Read from server failed, maybe it closed the "
"connection\n"));
return;
diff --git a/source/include/client.h b/source/include/client.h
index d8c3578..dd8bb0d 100644
--- a/source/include/client.h
+++ b/source/include/client.h
@@ -82,7 +82,7 @@ struct rpc_pipe_client {
struct cli_state {
int port;
int fd;
- /* Copy of last read or write error. */
+ /* Last read or write error. */
enum smb_read_errors smb_rw_error;
uint16 cnum;
uint16 pid;
diff --git a/source/lib/util_sock.c b/source/lib/util_sock.c
index 0209723..4a870b7 100644
--- a/source/lib/util_sock.c
+++ b/source/lib/util_sock.c
@@ -654,22 +654,19 @@ int client_socket_port(int fd)
Accessor functions to make thread-safe code easier later...
****************************************************************************/
-static enum smb_read_errors smb_read_error = SMB_READ_OK;
-
-enum smb_read_errors get_smb_read_error(void)
-{
- return smb_read_error;
-}
-
-void set_smb_read_error(enum smb_read_errors newerr)
+void set_smb_read_error(enum smb_read_errors *pre,
+ enum smb_read_errors newerr)
{
- smb_read_error = newerr;
+ if (pre) {
+ *pre = newerr;
+ }
}
-void cond_set_smb_read_error(enum smb_read_errors newerr)
+void cond_set_smb_read_error(enum smb_read_errors *pre,
+ enum smb_read_errors newerr)
{
- if (smb_read_error == SMB_READ_OK) {
- smb_read_error = newerr;
+ if (pre && *pre == SMB_READ_OK) {
+ *pre = newerr;
}
}
@@ -883,7 +880,8 @@ ssize_t read_socket_with_timeout(int fd,
char *buf,
size_t mincnt,
size_t maxcnt,
- unsigned int time_out)
+ unsigned int time_out,
+ enum smb_read_errors *pre)
{
fd_set fds;
int selrtn;
@@ -896,7 +894,7 @@ ssize_t read_socket_with_timeout(int fd,
if (maxcnt <= 0)
return(0);
- set_smb_read_error(SMB_READ_OK);
+ set_smb_read_error(pre,SMB_READ_OK);
/* Blocking read */
if (time_out == 0) {
@@ -910,7 +908,7 @@ ssize_t read_socket_with_timeout(int fd,
if (readret == 0) {
DEBUG(5,("read_socket_with_timeout: "
"blocking read. EOF from client.\n"));
- set_smb_read_error(SMB_READ_EOF);
+ set_smb_read_error(pre,SMB_READ_EOF);
return -1;
}
@@ -927,7 +925,7 @@ ssize_t read_socket_with_timeout(int fd,
"read error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(SMB_READ_ERROR);
+ set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
nread += readret;
@@ -966,7 +964,7 @@ ssize_t read_socket_with_timeout(int fd,
"read. select error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(SMB_READ_ERROR);
+ set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
@@ -974,7 +972,7 @@ ssize_t read_socket_with_timeout(int fd,
if (selrtn == 0) {
DEBUG(10,("read_socket_with_timeout: timeout read. "
"select timed out.\n"));
- set_smb_read_error(SMB_READ_TIMEOUT);
+ set_smb_read_error(pre,SMB_READ_TIMEOUT);
return -1;
}
@@ -984,7 +982,7 @@ ssize_t read_socket_with_timeout(int fd,
/* we got EOF on the file descriptor */
DEBUG(5,("read_socket_with_timeout: timeout read. "
"EOF from client.\n"));
- set_smb_read_error(SMB_READ_EOF);
+ set_smb_read_error(pre,SMB_READ_EOF);
return -1;
}
@@ -1002,7 +1000,7 @@ ssize_t read_socket_with_timeout(int fd,
"read. read error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(SMB_READ_ERROR);
+ set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
@@ -1017,13 +1015,13 @@ ssize_t read_socket_with_timeout(int fd,
Read data from the client, reading exactly N bytes.
****************************************************************************/
-ssize_t read_data(int fd,char *buffer,size_t N)
+ssize_t read_data(int fd,char *buffer,size_t N, enum smb_read_errors *pre)
{
ssize_t ret;
size_t total=0;
char addr[INET6_ADDRSTRLEN];
- set_smb_read_error(SMB_READ_OK);
+ set_smb_read_error(pre,SMB_READ_OK);
while (total < N) {
ret = sys_read(fd,buffer + total,N - total);
@@ -1032,7 +1030,7 @@ ssize_t read_data(int fd,char *buffer,size_t N)
DEBUG(10,("read_data: read of %d returned 0. "
"Error = %s\n",
(int)(N - total), strerror(errno) ));
- set_smb_read_error(SMB_READ_EOF);
+ set_smb_read_error(pre,SMB_READ_EOF);
return 0;
}
@@ -1051,7 +1049,7 @@ ssize_t read_data(int fd,char *buffer,size_t N)
(int)(N - total),
strerror(errno) ));
}
- set_smb_read_error(SMB_READ_ERROR);
+ set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
total += ret;
@@ -1119,8 +1117,9 @@ bool send_keepalive(int client)
****************************************************************************/
ssize_t read_smb_length_return_keepalive(int fd,
- char *inbuf,
- unsigned int timeout)
+ char *inbuf,
+ unsigned int timeout,
+ enum smb_read_errors *pre)
{
ssize_t len=0;
int msg_type;
@@ -1128,10 +1127,10 @@ ssize_t read_smb_length_return_keepalive(int fd,
while (!ok) {
if (timeout > 0) {
- ok = (read_socket_with_timeout(fd,inbuf,4,4,timeout)
- == 4);
+ ok = (read_socket_with_timeout(fd,inbuf,4,4,
+ timeout,pre) == 4);
} else {
- ok = (read_data(fd,inbuf,4) == 4);
+ ok = (read_data(fd,inbuf,4,pre) == 4);
}
if (!ok) {
return -1;
@@ -1147,7 +1146,7 @@ ssize_t read_smb_length_return_keepalive(int fd,
DEBUG(10,("got smb length of %lu\n",(unsigned long)len));
- return(len);
+ return len;
}
/****************************************************************************
@@ -1157,12 +1156,12 @@ ssize_t read_smb_length_return_keepalive(int fd,
Timeout is in milliseconds.
****************************************************************************/
-ssize_t read_smb_length(int fd, char *inbuf, unsigned int timeout)
+ssize_t read_smb_length(int fd, char *inbuf, unsigned int timeout, enum smb_read_errors *pre)
{
ssize_t len;
for(;;) {
- len = read_smb_length_return_keepalive(fd, inbuf, timeout);
+ len = read_smb_length_return_keepalive(fd, inbuf, timeout, pre);
if(len < 0)
return len;
@@ -1191,13 +1190,14 @@ ssize_t read_smb_length(int fd, char *inbuf, unsigned int timeout)
ssize_t receive_smb_raw(int fd,
char *buffer,
unsigned int timeout,
- size_t maxlen)
+ size_t maxlen,
+ enum smb_read_errors *pre)
{
ssize_t len,ret;
- set_smb_read_error(SMB_READ_OK);
+ set_smb_read_error(pre,SMB_READ_OK);
- len = read_smb_length_return_keepalive(fd,buffer,timeout);
+ len = read_smb_length_return_keepalive(fd,buffer,timeout,pre);
if (len < 0) {
DEBUG(10,("receive_smb_raw: length < 0!\n"));
@@ -1207,7 +1207,7 @@ ssize_t receive_smb_raw(int fd,
* variables still suck :-). JRA.
*/
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
@@ -1227,7 +1227,7 @@ ssize_t receive_smb_raw(int fd,
* variables still suck :-). JRA.
*/
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
}
@@ -1242,13 +1242,14 @@ ssize_t receive_smb_raw(int fd,
buffer+4,
len,
len,
- timeout);
+ timeout,
+ pre);
} else {
- ret = read_data(fd,buffer+4,len);
+ ret = read_data(fd,buffer+4,len,pre);
}
if (ret != len) {
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(pre,SMB_READ_ERROR);
return -1;
}
@@ -1266,9 +1267,9 @@ ssize_t receive_smb_raw(int fd,
Checks the MAC on signed packets.
****************************************************************************/
-bool receive_smb(int fd, char *buffer, unsigned int timeout)
+bool receive_smb(int fd, char *buffer, unsigned int timeout, enum smb_read_errors *pre)
{
- if (receive_smb_raw(fd, buffer, timeout, 0) < 0) {
+ if (receive_smb_raw(fd, buffer, timeout, 0, pre) < 0) {
return false;
}
@@ -1276,7 +1277,7 @@ bool receive_smb(int fd, char *buffer, unsigned int timeout)
if (!srv_check_sign_mac(buffer, true)) {
DEBUG(0, ("receive_smb: SMB Signature verification "
"failed on incoming packet!\n"));
- cond_set_smb_read_error(SMB_READ_BAD_SIG);
+ cond_set_smb_read_error(pre,SMB_READ_BAD_SIG);
return false;
}
diff --git a/source/libsmb/clientgen.c b/source/libsmb/clientgen.c
index 0a8ff4e..ee1a0fe 100644
--- a/source/libsmb/clientgen.c
+++ b/source/libsmb/clientgen.c
@@ -52,24 +52,26 @@ int cli_set_port(struct cli_state *cli, int port)
should never go into a blocking read.
****************************************************************************/
-static ssize_t client_receive_smb(int fd,char *buffer, unsigned int timeout, size_t maxlen)
+static ssize_t client_receive_smb(struct cli_state *cli, size_t maxlen)
{
ssize_t len;
for(;;) {
- len = receive_smb_raw(fd, buffer, timeout, maxlen);
+ len = receive_smb_raw(cli->fd, cli->inbuf, cli->timeout,
+ maxlen, &cli->smb_rw_error);
if (len < 0) {
DEBUG(10,("client_receive_smb failed\n"));
- show_msg(buffer);
+ show_msg(cli->inbuf);
return len;
}
/* Ignore session keepalive packets. */
- if(CVAL(buffer,0) != SMBkeepalive)
+ if(CVAL(cli->inbuf,0) != SMBkeepalive) {
break;
+ }
}
- show_msg(buffer);
+ show_msg(cli->inbuf);
return len;
}
@@ -86,7 +88,7 @@ bool cli_receive_smb(struct cli_state *cli)
return False;
again:
- len = client_receive_smb(cli->fd,cli->inbuf,cli->timeout, 0);
+ len = client_receive_smb(cli, 0);
if (len > 0) {
/* it might be an oplock break request */
@@ -110,7 +112,6 @@ bool cli_receive_smb(struct cli_state *cli)
/* If the server is not responding, note that now */
if (len < 0) {
DEBUG(0, ("Receiving SMB: Server stopped responding\n"));
- cli->smb_rw_error = get_smb_read_error();
close(cli->fd);
cli->fd = -1;
return False;
@@ -154,9 +155,10 @@ bool cli_receive_smb(struct cli_state *cli)
ssize_t cli_receive_smb_data(struct cli_state *cli, char *buffer, size_t len)
{
if (cli->timeout > 0) {
- return read_socket_with_timeout(cli->fd, buffer, len, len, cli->timeout);
+ return read_socket_with_timeout(cli->fd, buffer, len,
+ len, cli->timeout, &cli->smb_rw_error);
} else {
- return read_data(cli->fd, buffer, len);
+ return read_data(cli->fd, buffer, len, &cli->smb_rw_error);
}
}
@@ -174,7 +176,7 @@ bool cli_receive_smb_readX_header(struct cli_state *cli)
again:
/* Read up to the size of a readX header reply. */
- len = client_receive_smb(cli->fd, cli->inbuf, cli->timeout, (smb_size - 4) + 24);
+ len = client_receive_smb(cli, (smb_size - 4) + 24);
if (len > 0) {
/* it might be an oplock break request */
@@ -240,7 +242,6 @@ bool cli_receive_smb_readX_header(struct cli_state *cli)
read_err:
- set_smb_read_error(SMB_READ_ERROR);
cli->smb_rw_error = SMB_READ_ERROR;
close(cli->fd);
cli->fd = -1;
diff --git a/source/nmbd/asyncdns.c b/source/nmbd/asyncdns.c
index b9c9ffb..33c1cb6 100644
--- a/source/nmbd/asyncdns.c
+++ b/source/nmbd/asyncdns.c
@@ -87,7 +87,7 @@ static void asyncdns_process(void)
DEBUGLEVEL = -1;
while (1) {
- if (read_data(fd_in, (char *)&r, sizeof(r)) != sizeof(r))
+ if (read_data(fd_in, (char *)&r, sizeof(r), NULL) != sizeof(r))
break;
pull_ascii_nstring( qname, sizeof(qname), r.name.name);
@@ -208,7 +208,7 @@ void run_dns_queue(void)
start_async_dns();
}
- if ((size=read_data(fd_in, (char *)&r, sizeof(r))) != sizeof(r)) {
+ if ((size=read_data(fd_in, (char *)&r, sizeof(r), NULL)) != sizeof(r)) {
if (size) {
DEBUG(0,("Incomplete DNS answer from child!\n"));
fd_in = -1;
diff --git a/source/smbd/chgpasswd.c b/source/smbd/chgpasswd.c
index fb6e6c0..d894421 100644
--- a/source/smbd/chgpasswd.c
+++ b/source/smbd/chgpasswd.c
@@ -256,7 +256,7 @@ static int expect(int master, char *issue, char *expected)
while ((len = read_socket_with_timeout(master, buffer + nread, 1,
sizeof(buffer) - nread - 1,
- timeout)) > 0) {
+ timeout, NULL)) > 0) {
nread += len;
buffer[nread] = 0;
diff --git a/source/smbd/process.c b/source/smbd/process.c
index 7d64556..24497de 100644
--- a/source/smbd/process.c
+++ b/source/smbd/process.c
@@ -24,6 +24,7 @@ extern struct auth_context *negprot_global_auth_context;
extern int smb_echo_count;
const int total_buffer_size = (BUFFER_SIZE + LARGE_WRITEX_HDR_SIZE + SAFETY_MARGIN);
+static enum smb_read_errors smb_read_error = SMB_READ_OK;
/*
* Size of data we can send to client. Set
@@ -43,6 +44,13 @@ SIG_ATOMIC_T got_sig_term = 0;
extern bool global_machine_password_needs_changing;
extern int max_send;
+/* Accessor function for smb_read_error for smbd functions. */
+
+enum smb_read_errors *get_srv_read_error(void)
+{
+ return &smb_read_error;
+}
+
/* Socket functions for smbd packet processing. */
static bool valid_packet_size(size_t len)
@@ -63,7 +71,8 @@ static bool valid_packet_size(size_t len)
* variables still suck :-). JRA.
*/
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(get_srv_read_error(),
+ SMB_READ_ERROR);
return false;
}
}
@@ -86,13 +95,15 @@ static ssize_t read_packet_remainder(int fd,
buffer,
len,
len,
- timeout);
+ timeout,
+ get_srv_read_error());
} else {
- ret = read_data(fd, buffer, len);
+ ret = read_data(fd, buffer, len, get_srv_read_error());
}
if (ret != len) {
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(get_srv_read_error(),
+ SMB_READ_ERROR);
return -1;
}
@@ -135,15 +146,18 @@ ssize_t receive_smb_raw_talloc_partial_read(TALLOC_CTX *mem_ctx,
writeX_header + 4,
STANDARD_WRITE_AND_X_HEADER_SIZE,
STANDARD_WRITE_AND_X_HEADER_SIZE,
- timeout);
+ timeout,
+ get_srv_read_error());
} else {
ret = read_data(fd,
writeX_header+4,
- STANDARD_WRITE_AND_X_HEADER_SIZE);
+ STANDARD_WRITE_AND_X_HEADER_SIZE,
+ get_srv_read_error());
}
if (ret != STANDARD_WRITE_AND_X_HEADER_SIZE) {
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(get_srv_read_error(),
+ SMB_READ_ERROR);
return -1;
}
@@ -183,7 +197,8 @@ ssize_t receive_smb_raw_talloc_partial_read(TALLOC_CTX *mem_ctx,
if (*buffer == NULL) {
DEBUG(0, ("Could not allocate inbuf of length %d\n",
(int)sizeof(writeX_header)));
- cond_set_smb_read_error(SMB_READ_ERROR);
+ cond_set_smb_read_error(get_srv_read_error(),
+ SMB_READ_ERROR);
return -1;
}
@@ -207,7 +222,8 @@ ssize_t receive_smb_raw_talloc_partial_read(TALLOC_CTX *mem_ctx,
--
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