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-rw-r--r--source/libsmb/clientgen.c199
1 files changed, 150 insertions, 49 deletions
diff --git a/source/libsmb/clientgen.c b/source/libsmb/clientgen.c
index 550f7cc391d..bb792b7e2bd 100644
--- a/source/libsmb/clientgen.c
+++ b/source/libsmb/clientgen.c
@@ -39,18 +39,27 @@ static BOOL cli_receive_smb(struct cli_state *cli)
/****************************************************************************
send an smb to a fd and re-establish if necessary
****************************************************************************/
-static BOOL cli_send_smb(struct cli_state *cli)
+static BOOL cli_send_smb(struct cli_state *cli, BOOL show)
{
size_t len;
size_t nwritten=0;
ssize_t ret;
BOOL reestablished=False;
+ if (show)
+ {
+ show_msg(cli->outbuf);
+ }
+
len = smb_len(cli->outbuf) + 4;
while (nwritten < len) {
ret = write_socket(cli->fd,cli->outbuf+nwritten,len - nwritten);
- if (ret <= 0 && errno == EPIPE && !reestablished) {
+ if (ret <= 0 && errno == EPIPE && !reestablished)
+ {
+ DEBUG(5,("cli_send_smb: write error (%s) - reconnecting\n",
+ strerror(errno)));
+
if (cli_reestablish_connection(cli)) {
reestablished = True;
nwritten=0;
@@ -60,8 +69,7 @@ static BOOL cli_send_smb(struct cli_state *cli)
if (ret <= 0) {
DEBUG(0,("Error writing %d bytes to client. %d. Exiting\n",
len,ret));
- close_sockets();
- exit(1);
+ return False;
}
nwritten += ret;
}
@@ -259,8 +267,7 @@ static BOOL cli_send_trans(struct cli_state *cli, int trans,
set_message(cli->outbuf,14+lsetup, /* wcnt, bcc */
PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
- show_msg(cli->outbuf);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (this_ldata < ldata || this_lparam < lparam) {
/* receive interim response */
@@ -300,8 +307,7 @@ static BOOL cli_send_trans(struct cli_state *cli, int trans,
set_message(cli->outbuf,trans==SMBtrans?8:9, /* wcnt, bcc */
PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
- show_msg(cli->outbuf);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
tot_data += this_ldata;
tot_param += this_lparam;
@@ -328,8 +334,6 @@ static BOOL cli_receive_trans(struct cli_state *cli,int trans,
if (!cli_receive_smb(cli))
return False;
- show_msg(cli->inbuf);
-
/* sanity check */
if (CVAL(cli->inbuf,smb_com) != trans) {
DEBUG(0,("Expected %s response, got command 0x%02x\n",
@@ -382,8 +386,6 @@ static BOOL cli_receive_trans(struct cli_state *cli,int trans,
if (!cli_receive_smb(cli))
return False;
- show_msg(cli->inbuf);
-
/* sanity check */
if (CVAL(cli->inbuf,smb_com) != trans) {
DEBUG(0,("Expected %s response, got command 0x%02x\n",
@@ -759,11 +761,12 @@ BOOL cli_session_setup(struct cli_state *cli,
set_message(cli->outbuf,13,PTR_DIFF(p,smb_buf(cli->outbuf)),False);
}
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli))
+ {
+ DEBUG(10,("cli_session_setup: receive smb failed\n"));
return False;
-
- show_msg(cli->inbuf);
+ }
if (CVAL(cli->inbuf,smb_rcls) != 0) {
return False;
@@ -804,7 +807,7 @@ BOOL cli_ulogoff(struct cli_state *cli)
SSVAL(cli->outbuf,smb_vwv0,0xFF);
SSVAL(cli->outbuf,smb_vwv2,0); /* no additional info */
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli))
return False;
@@ -858,7 +861,7 @@ BOOL cli_send_tconX(struct cli_state *cli,
SCVAL(cli->inbuf,smb_rcls, 1);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli))
return False;
@@ -899,7 +902,7 @@ BOOL cli_tdis(struct cli_state *cli)
SSVAL(cli->outbuf,smb_tid,cli->cnum);
cli_setup_packet(cli);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli))
return False;
@@ -931,7 +934,7 @@ BOOL cli_rename(struct cli_state *cli, char *fname_src, char *fname_dst)
*p++ = 4;
pstrcpy(p,fname_dst);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -965,7 +968,7 @@ BOOL cli_unlink(struct cli_state *cli, char *fname)
*p++ = 4;
pstrcpy(p,fname);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -997,7 +1000,7 @@ BOOL cli_mkdir(struct cli_state *cli, char *dname)
*p++ = 4;
pstrcpy(p,dname);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1029,7 +1032,7 @@ BOOL cli_rmdir(struct cli_state *cli, char *dname)
*p++ = 4;
pstrcpy(p,dname);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1074,7 +1077,7 @@ int cli_nt_create(struct cli_state *cli, char *fname)
pstrcpy(p,fname);
p = skip_string(p,1);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return -1;
}
@@ -1145,7 +1148,7 @@ int cli_open(struct cli_state *cli, char *fname, int flags, int share_mode)
pstrcpy(p,fname);
p = skip_string(p,1);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return -1;
}
@@ -1177,7 +1180,7 @@ BOOL cli_close(struct cli_state *cli, int fnum)
SSVAL(cli->outbuf,smb_vwv0,fnum);
SIVALS(cli->outbuf,smb_vwv1,-1);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1218,7 +1221,7 @@ BOOL cli_lock(struct cli_state *cli, int fnum, uint32 offset, uint32 len, int ti
SSVAL(p, 0, cli->pid);
SIVAL(p, 2, offset);
SIVAL(p, 6, len);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
cli->timeout = (timeout == -1) ? 0x7FFFFFFF : timeout;
@@ -1264,7 +1267,7 @@ BOOL cli_unlock(struct cli_state *cli, int fnum, uint32 offset, uint32 len, int
SIVAL(p, 2, offset);
SIVAL(p, 6, len);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1300,7 +1303,7 @@ static void cli_issue_read(struct cli_state *cli, int fnum, off_t offset,
SSVAL(cli->outbuf,smb_vwv6,size);
SSVAL(cli->outbuf,smb_mid,cli->mid + i);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
}
/****************************************************************************
@@ -1406,8 +1409,7 @@ static void cli_issue_write(struct cli_state *cli, int fnum, off_t offset, uint1
SSVAL(cli->outbuf,smb_mid,cli->mid + i);
- show_msg(cli->outbuf);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
}
/****************************************************************************
@@ -1495,7 +1497,7 @@ BOOL cli_getattrE(struct cli_state *cli, int fd,
SSVAL(cli->outbuf,smb_vwv0,fd);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1549,7 +1551,7 @@ BOOL cli_getatr(struct cli_state *cli, char *fname,
*p = 4;
pstrcpy(p+1, fname);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -1600,7 +1602,7 @@ BOOL cli_setatr(struct cli_state *cli, char *fname, uint16 attr, time_t t)
p = skip_string(p,1);
*p = 4;
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -2163,13 +2165,14 @@ BOOL cli_oem_change_password(struct cli_state *cli, const char *user, const char
data_len = 532;
- if (cli_send_trans(cli,SMBtrans,
+ if (!cli_send_trans(cli,SMBtrans,
PIPE_LANMAN,strlen(PIPE_LANMAN), /* name, length */
0,0, /* fid, flags */
NULL,0,0, /* setup, length, max */
param,param_len,2, /* param, length, max */
data,data_len,0 /* data, length, max */
- ) == False) {
+ ))
+ {
DEBUG(0,("cli_oem_change_password: Failed to send password change for user %s\n",
user ));
return False;
@@ -2223,11 +2226,11 @@ BOOL cli_negprot(struct cli_state *cli)
CVAL(smb_buf(cli->outbuf),0) = 2;
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli))
+ {
return False;
-
- show_msg(cli->inbuf);
+ }
if (CVAL(cli->inbuf,smb_rcls) != 0 ||
((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
@@ -2305,7 +2308,7 @@ BOOL cli_session_request(struct cli_state *cli,
retry:
#endif /* WITH_SSL */
- cli_send_smb(cli);
+ cli_send_smb(cli, False);
DEBUG(5,("Sent session request\n"));
if (!cli_receive_smb(cli))
@@ -2401,6 +2404,7 @@ shutdown a client structure
****************************************************************************/
void cli_shutdown(struct cli_state *cli)
{
+ DEBUG(10,("cli_shutdown\n"));
if (cli->outbuf)
{
free(cli->outbuf);
@@ -2414,7 +2418,9 @@ void cli_shutdown(struct cli_state *cli)
sslutil_disconnect(cli->fd);
#endif /* WITH_SSL */
if (cli->fd != -1)
- close(cli->fd);
+ {
+ close(cli->fd);
+ }
memset(cli, 0, sizeof(*cli));
}
@@ -2429,10 +2435,18 @@ void cli_shutdown(struct cli_state *cli)
****************************************************************************/
int cli_error(struct cli_state *cli, uint8 *eclass, uint32 *num)
{
- int flgs2 = SVAL(cli->inbuf,smb_flg2);
+ int flgs2;
char rcls;
int code;
+ if (!cli->initialised)
+ {
+ DEBUG(0,("cli_error: client state uninitialised!\n"));
+ return EINVAL;
+ }
+
+ flgs2 = SVAL(cli->inbuf,smb_flg2);
+
if (eclass) *eclass = 0;
if (num ) *num = 0;
@@ -2671,7 +2685,9 @@ BOOL cli_establish_connection(struct cli_state *cli,
{
DEBUG(1,("failed session setup\n"));
if (do_shutdown)
- cli_shutdown(cli);
+ {
+ cli_shutdown(cli);
+ }
return False;
}
@@ -2682,20 +2698,105 @@ BOOL cli_establish_connection(struct cli_state *cli,
{
DEBUG(1,("failed tcon_X\n"));
if (do_shutdown)
- cli_shutdown(cli);
+ {
+ cli_shutdown(cli);
+ }
return False;
}
}
}
if (do_shutdown)
- cli_shutdown(cli);
+ {
+ cli_shutdown(cli);
+ }
return True;
}
/****************************************************************************
+ connect to one of multiple servers: don't care which
+****************************************************************************/
+BOOL cli_connect_serverlist(struct cli_state *cli, char *p)
+{
+ extern pstring global_myname;
+ extern pstring scope;
+ fstring remote_machine;
+ struct in_addr dest_ip;
+ struct nmb_name calling, called;
+ BOOL connected_ok = True;
+
+ ZERO_STRUCT(cli);
+
+ if (!cli_initialise(cli))
+ {
+ DEBUG(0,("cli_connect_serverlist: unable to initialize client connection.\n"));
+ return False;
+ }
+
+ /*
+ * Treat each name in the 'password server =' line as a potential
+ * PDC/BDC. Contact each in turn and try and authenticate.
+ */
+
+ while(p && next_token(&p,remote_machine,LIST_SEP,sizeof(remote_machine)))
+ {
+ standard_sub_basic(remote_machine);
+ strupper(remote_machine);
+
+ if (!resolve_name( remote_machine, &dest_ip, 0x20))
+ {
+ DEBUG(1,("cli_connect_serverlist: Can't resolve address for %s\n", remote_machine));
+ continue;
+ }
+
+ if (ismyip(dest_ip))
+ {
+ DEBUG(1,("cli_connect_serverlist: Password server loop - not using password server %s\n", remote_machine));
+ continue;
+ }
+
+ make_nmb_name(&calling, global_myname , 0x0 , scope);
+ make_nmb_name(&called , remote_machine, 0x20, scope);
+
+ pwd_set_nullpwd(&cli->pwd);
+
+ if (!cli_establish_connection(cli, remote_machine, &dest_ip,
+ &calling, &called,
+ "IPC$", "IPC",
+ False, True))
+ {
+ cli_shutdown(cli);
+ continue;
+ }
+
+ if (!IS_BITS_SET_ALL(cli->sec_mode, 1))
+ {
+ DEBUG(1,("cli_connect_serverlist: machine %s isn't in user level security mode\n",
+ remote_machine));
+ cli_shutdown(cli);
+ continue;
+ }
+
+ /*
+ * We have an anonymous connection to IPC$.
+ */
+
+ connected_ok = True;
+ break;
+ }
+
+ if (!connected_ok)
+ {
+ DEBUG(0,("cli_connect_serverlist: Domain password server not available.\n"));
+ cli_shutdown(cli);
+ }
+
+ return connected_ok;
+}
+
+/****************************************************************************
cancel a print job
****************************************************************************/
int cli_printjob_del(struct cli_state *cli, int job)
@@ -2826,7 +2927,7 @@ BOOL cli_chkpath(struct cli_state *cli, char *path)
*p++ = 4;
fstrcpy(p,path2);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
@@ -2862,7 +2963,7 @@ BOOL cli_message_start(struct cli_state *cli, char *host, char *username,
set_message(cli->outbuf,0,PTR_DIFF(p,smb_buf(cli->outbuf)),False);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
@@ -2895,7 +2996,7 @@ BOOL cli_message_text(struct cli_state *cli, char *msg, int len, int grp)
*p = 1;
SSVAL(p,1,len);
memcpy(p+3,msg,len);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
@@ -2920,7 +3021,7 @@ BOOL cli_message_end(struct cli_state *cli, int grp)
cli_setup_packet(cli);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
@@ -2943,7 +3044,7 @@ BOOL cli_dskattr(struct cli_state *cli, int *bsize, int *total, int *avail)
SSVAL(cli->outbuf,smb_tid,cli->cnum);
cli_setup_packet(cli);
- cli_send_smb(cli);
+ cli_send_smb(cli, True);
if (!cli_receive_smb(cli)) {
return False;
}
generated by cgit (git 2.34.1) at 2024-11-15 11:16:42 +0000