[Samba] programming libsmbclient
Mattieu Puel
mp at intradot.com
Thu May 10 15:22:36 GMT 2007
hi all,
I have a strange problem using the libsmbclient api..
retrieving or stating files named with percents in is for some
of them impossible. Example: a file located at "smb://test/test/%7C2.txt" cannot be retrieved
with my code, smbc_open fails with the code NT_STATUS_OBJECT_NAME_INVALID.
I am not sure but, url encoding/decoding that would escape strings with "percent" in should be 'internals'
of samba right ?
At the same time under the same constraints, a file named 'whatever-you-want-except-with-percent'
is correctly stated, opened, read.
I tested the code on several distributions (debian, gentoo..) with the same results. I tried
with several CIFS servers too (Win Xp, linux...).
Attached: the source and the trace given by smbc_init with debug = 9.
Anyone any idea ?
the code:
--------------------------------------------------------------------------------------
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <libsmbclient.h>
static void
get_auth_data_fn(const char * pServer,
const char * pShare,
char * pWorkgroup,
int maxLenWorkgroup,
char * pUsername,
int maxLenUsername,
char * pPassword,
int maxLenPassword)
{
sprintf( pWorkgroup, "%s", "WG" );
sprintf( pUsername, "%s", "test" );
sprintf( pPassword, "%s", "test" );
}
int main(int argc, char * argv[])
{
int fd;
int ret;
int debug = 9;
int savedErrno;
char buffer[2048];
char * pSmbPath = NULL;
if (argc == 2)
{
pSmbPath = argv[1];
}
else
{
printf("usage: "
"%s [ smb://path/to/file ]\n",
argv[0]);
return 1;
}
smbc_init(get_auth_data_fn, debug);
printf("Open file %s\n", pSmbPath);
if ((fd = smbc_open(pSmbPath, O_RDONLY, 0)) < 0)
{
perror("smbc_open");
return 1;
}
do
{
ret = smbc_read(fd, buffer, sizeof(buffer));
savedErrno = errno;
if (ret > 0) fwrite(buffer, 1, ret, stdout);
} while (ret > 0);
smbc_close(fd);
if (ret < 0)
{
errno = savedErrno;
perror("read");
return 1;
}
return 0;
}
------------------------------------------------------------------------------
the tail of the trace:
Server connect ok: //regis/dossier: 0x8050508
write_socket(4,88)
write_socket(4,88) wrote 88
size=35
smb_com=0x2d
smb_rcls=51
smb_reh=0
smb_err=49152
smb_flg=136
smb_flg2=51201
smb_tid=2048
smb_pid=13079
smb_uid=2048
smb_mid=5
smt_wct=0
smb_bcc=0
smbc errno NT_STATUS_OBJECT_NAME_INVALID -> 22
smbc_open: Argument invalide
Open file smb://regis/dossier/a%7C2.txt
--
Mattieu PUEL
Recherche & développement
--
Intradot Labs SAS
+33 4 78 80 87 90 | www.intradot.com
--
Intradot a déménagé !
Notez bien notre nouvelle adresse :
97 rue Racine - 69100 Villeurbanne
-------------- next part --------------
lp_load: refreshing parameters
Initialising global parameters
params.c:OpenConfFile() - Unable to open configuration file "/home/vodmat/.smb/smb.conf":
No such file or directory
pm_process() returned No
lp_servicenumber: couldn't find homes
Attempting to register new charset UCS-2LE
Registered charset UCS-2LE
Attempting to register new charset UTF-16LE
Registered charset UTF-16LE
Attempting to register new charset UCS-2BE
Registered charset UCS-2BE
Attempting to register new charset UTF-16BE
Registered charset UTF-16BE
Attempting to register new charset UTF8
Registered charset UTF8
Attempting to register new charset UTF-8
Registered charset UTF-8
Attempting to register new charset ASCII
Registered charset ASCII
Attempting to register new charset 646
Registered charset 646
Attempting to register new charset ISO-8859-1
Registered charset ISO-8859-1
Attempting to register new charset UCS2-HEX
Registered charset UCS2-HEX
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Substituting charset 'ISO-8859-15' for LOCALE
Could not load config file: /home/vodmat/.smb/smb.conf
lp_load: refreshing parameters
params.c:pm_process() - Processing configuration file "/etc/samba/smb.conf"
Processing section "[global]"
doing parameter display charset = UTF-8
doing parameter unix charset = ISO8859-15
doing parameter workgroup = INTRADOT
doing parameter server string = %h server (Samba %v)
doing parameter dns proxy = no
doing parameter log file = /var/log/samba/log.%m
doing parameter max log size = 1000
doing parameter syslog = 0
doing parameter panic action = /usr/share/samba/panic-action %d
doing parameter security = share
doing parameter invalid users = root
doing parameter passwd program = /usr/bin/passwd %u
doing parameter passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n .
doing parameter socket options = TCP_NODELAY
pm_process() returned Yes
lp_servicenumber: couldn't find homes
lp_load: refreshing parameters
params.c:OpenConfFile() - Unable to open configuration file "/home/vodmat/.smb/smb.conf.append":
Aucun fichier ou répertoire de ce type
pm_process() returned No
lp_servicenumber: couldn't find homes
added interface ip=192.168.2.101 bcast=192.168.2.255 nmask=255.255.255.0
Using netbios name VODMAT.
Using workgroup INTRADOT.
smbc_server: server_n=[regis] server=[regis]
-> server_n=[regis] server=[regis]
Opening cache file at /var/run/samba/gencache.tdb
tdb(unnamed): tdb_open_ex: could not open file /var/run/samba/gencache.tdb: Permission non accordée
gencache_init: Opening cache file /var/run/samba/gencache.tdb read-only.
no entry for regis#20 found.
resolve_lmhosts: Attempting lmhosts lookup for name regis<0x20>
startlmhosts: Can't open lmhosts file /etc/samba/lmhosts. Error was Aucun fichier ou répertoire de ce type
resolve_wins: Attempting wins lookup for name regis<0x20>
resolve_wins: WINS server resolution selected and no WINS servers listed.
resolve_hosts: Attempting host lookup for name regis<0x20>
namecache_store: storing 1 address for regis#20: 192.168.2.120:0
Connecting to 192.168.2.120 at port 445
socket option SO_KEEPALIVE = 0
socket option SO_REUSEADDR = 0
socket option SO_BROADCAST = 0
socket option TCP_NODELAY = 1
socket option TCP_KEEPCNT = 9
socket option TCP_KEEPIDLE = 7200
socket option TCP_KEEPINTVL = 75
socket option IPTOS_LOWDELAY = 0
socket option IPTOS_THROUGHPUT = 0
socket option SO_SNDBUF = 16384
socket option SO_RCVBUF = 87380
socket option SO_SNDLOWAT = 1
socket option SO_RCVLOWAT = 1
socket option SO_SNDTIMEO = 0
socket option SO_RCVTIMEO = 0
session request ok
write_socket(4,183)
write_socket(4,183) wrote 183
size=85
smb_com=0x72
smb_rcls=0
smb_reh=0
smb_err=0
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=0
smb_mid=1
smt_wct=17
smb_vwv[ 0]= 8 (0x8)
smb_vwv[ 1]= 2563 (0xA03)
smb_vwv[ 2]= 256 (0x100)
smb_vwv[ 3]= 1024 (0x400)
smb_vwv[ 4]= 17 (0x11)
smb_vwv[ 5]= 0 (0x0)
smb_vwv[ 6]= 256 (0x100)
smb_vwv[ 7]= 0 (0x0)
smb_vwv[ 8]= 0 (0x0)
smb_vwv[ 9]=64768 (0xFD00)
smb_vwv[10]= 227 (0xE3)
smb_vwv[11]=16512 (0x4080)
smb_vwv[12]=24216 (0x5E98)
smb_vwv[13]= 2468 (0x9A4)
smb_vwv[14]=51091 (0xC793)
smb_vwv[15]=34817 (0x8801)
smb_vwv[16]= 255 (0xFF)
smb_bcc=16
size=85
smb_com=0x72
smb_rcls=0
smb_reh=0
smb_err=0
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=0
smb_mid=1
smt_wct=17
smb_vwv[ 0]= 8 (0x8)
smb_vwv[ 1]= 2563 (0xA03)
smb_vwv[ 2]= 256 (0x100)
smb_vwv[ 3]= 1024 (0x400)
smb_vwv[ 4]= 17 (0x11)
smb_vwv[ 5]= 0 (0x0)
smb_vwv[ 6]= 256 (0x100)
smb_vwv[ 7]= 0 (0x0)
smb_vwv[ 8]= 0 (0x0)
smb_vwv[ 9]=64768 (0xFD00)
smb_vwv[10]= 227 (0xE3)
smb_vwv[11]=16512 (0x4080)
smb_vwv[12]=24216 (0x5E98)
smb_vwv[13]= 2468 (0x9A4)
smb_vwv[14]=51091 (0xC793)
smb_vwv[15]=34817 (0x8801)
smb_vwv[16]= 255 (0xFF)
smb_bcc=16
Doing spnego session setup (blob length=16)
server didn't supply a full spnego negprot
write_socket(4,166)
write_socket(4,166) wrote 166
size=273
smb_com=0x73
smb_rcls=22
smb_reh=0
smb_err=49152
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=2048
smb_mid=2
smt_wct=4
smb_vwv[ 0]= 255 (0xFF)
smb_vwv[ 1]= 273 (0x111)
smb_vwv[ 2]= 0 (0x0)
smb_vwv[ 3]= 156 (0x9C)
smb_bcc=230
size=273
smb_com=0x73
smb_rcls=22
smb_reh=0
smb_err=49152
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=2048
smb_mid=2
smt_wct=4
smb_vwv[ 0]= 255 (0xFF)
smb_vwv[ 1]= 273 (0x111)
smb_vwv[ 2]= 0 (0x0)
smb_vwv[ 3]= 156 (0x9C)
smb_bcc=230
Got challenge flags:
Got NTLMSSP neg_flags=0x628a0215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_CHAL_ACCEPT_RESPONSE
NTLMSSP_NEGOTIATE_NTLM2
NTLMSSP_CHAL_TARGET_INFO
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x60080215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_NTLM2
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
NTLMSSP challenge set by NTLM2
challenge is:
[000] 0C 80 A2 A6 20 69 B3 E0 ..¢? i³à
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x60080215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_NTLM2
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
write_socket(4,250)
write_socket(4,250) wrote 250
size=126
smb_com=0x73
smb_rcls=0
smb_reh=0
smb_err=0
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=2048
smb_mid=3
smt_wct=4
smb_vwv[ 0]= 255 (0xFF)
smb_vwv[ 1]= 126 (0x7E)
smb_vwv[ 2]= 0 (0x0)
smb_vwv[ 3]= 9 (0x9)
smb_bcc=83
size=126
smb_com=0x73
smb_rcls=0
smb_reh=0
smb_err=0
smb_flg=136
smb_flg2=51201
smb_tid=0
smb_pid=13079
smb_uid=2048
smb_mid=3
smt_wct=4
smb_vwv[ 0]= 255 (0xFF)
smb_vwv[ 1]= 126 (0x7E)
smb_vwv[ 2]= 0 (0x0)
smb_vwv[ 3]= 9 (0x9)
smb_bcc=83
session setup ok
write_socket(4,86)
write_socket(4,86) wrote 86
size=54
smb_com=0x75
smb_rcls=0
smb_reh=0
smb_err=0
smb_flg=136
smb_flg2=51201
smb_tid=2048
smb_pid=13079
smb_uid=2048
smb_mid=4
smt_wct=3
smb_vwv[ 0]= 255 (0xFF)
smb_vwv[ 1]= 54 (0x36)
smb_vwv[ 2]= 1 (0x1)
smb_bcc=13
tconx ok
Server connect ok: //regis/dossier: 0x8050508
write_socket(4,88)
write_socket(4,88) wrote 88
size=35
smb_com=0x2d
smb_rcls=51
smb_reh=0
smb_err=49152
smb_flg=136
smb_flg2=51201
smb_tid=2048
smb_pid=13079
smb_uid=2048
smb_mid=5
smt_wct=0
smb_bcc=0
smbc errno NT_STATUS_OBJECT_NAME_INVALID -> 22
smbc_open: Argument invalide
Open file smb://regis/dossier/a%7C2.txt
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