-/*
+/*
Unix SMB/Netbios implementation.
SMB client library implementation
Copyright (C) Andrew Tridgell 1998
Copyright (C) Richard Sharpe 2000, 2002
Copyright (C) John Terpstra 2000
- Copyright (C) Tom Jansen (Ninja ISD) 2002
+ Copyright (C) Tom Jansen (Ninja ISD) 2002
Copyright (C) Derrell Lipman 2003-2008
Copyright (C) Jeremy Allison 2007, 2008
+ Copyright (C) SATOH Fumiyasu <fumiyas@osstech.co.jp> 2009.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "includes.h"
+#include "libsmb/libsmb.h"
#include "libsmbclient.h"
#include "libsmb_internal.h"
+#include "../librpc/gen_ndr/ndr_lsa.h"
+#include "rpc_client/cli_pipe.h"
+#include "rpc_client/cli_lsarpc.h"
+#include "libcli/security/security.h"
+#include "libsmb/nmblib.h"
+#include "../libcli/smb/smbXcli_base.h"
-
-/*
+/*
* Check a server for being alive and well.
- * returns 0 if the server is in shape. Returns 1 on error
- *
+ * returns 0 if the server is in shape. Returns 1 on error
+ *
* Also useable outside libsmbclient to enable external cache
* to do some checks too.
*/
int
SMBC_check_server(SMBCCTX * context,
- SMBCSRV * server)
+ SMBCSRV * server)
{
- socklen_t size;
- struct sockaddr addr;
+ time_t now;
- size = sizeof(addr);
- return (getpeername(server->cli->fd, &addr, &size) == -1);
+ if (!cli_state_is_connected(server->cli)) {
+ return 1;
+ }
+
+ now = time_mono(NULL);
+
+ if (server->last_echo_time == (time_t)0 ||
+ now > server->last_echo_time +
+ (server->cli->timeout/1000)) {
+ unsigned char data[16] = {0};
+ NTSTATUS status = cli_echo(server->cli,
+ 1,
+ data_blob_const(data, sizeof(data)));
+ if (!NT_STATUS_IS_OK(status)) {
+ return 1;
+ }
+ server->last_echo_time = now;
+ }
+ return 0;
}
-/*
+/*
* Remove a server from the cached server list it's unused.
* On success, 0 is returned. 1 is returned if the server could not be removed.
- *
+ *
* Also useable outside libsmbclient
*/
int
/****************************************************************
* Call the auth_fn with fixed size (fstring) buffers.
***************************************************************/
-void
+static void
SMBC_call_auth_fn(TALLOC_CTX *ctx,
SMBCCTX *context,
const char *server,
char **pp_username,
char **pp_password)
{
- fstring workgroup;
- fstring username;
- fstring password;
+ fstring workgroup = { 0 };
+ fstring username = { 0 };
+ fstring password = { 0 };
smbc_get_auth_data_with_context_fn auth_with_context_fn;
- strlcpy(workgroup, *pp_workgroup, sizeof(workgroup));
- strlcpy(username, *pp_username, sizeof(username));
- strlcpy(password, *pp_password, sizeof(password));
+ if (*pp_workgroup != NULL) {
+ strlcpy(workgroup, *pp_workgroup, sizeof(workgroup));
+ }
+ if (*pp_username != NULL) {
+ strlcpy(username, *pp_username, sizeof(username));
+ }
+ if (*pp_password != NULL) {
+ strlcpy(password, *pp_password, sizeof(password));
+ }
/* See if there's an authentication with context function provided */
auth_with_context_fn = smbc_getFunctionAuthDataWithContext(context);
* servers in the cache
*/
if (smbc_getFunctionRemoveUnusedServer(context)(context,
- srv)) {
+ srv)) {
/*
* We could not remove the server completely,
* remove it from the cache so we will not get
* info we need, unless the username and password were passed in.
*/
-SMBCSRV *
-SMBC_server(TALLOC_CTX *ctx,
+static SMBCSRV *
+SMBC_server_internal(TALLOC_CTX *ctx,
SMBCCTX *context,
bool connect_if_not_found,
const char *server,
+ uint16_t port,
const char *share,
char **pp_workgroup,
char **pp_username,
- char **pp_password)
+ char **pp_password,
+ bool *in_cache)
{
SMBCSRV *srv=NULL;
char *workgroup = NULL;
- struct cli_state *c;
- struct nmb_name called, calling;
+ struct cli_state *c = NULL;
const char *server_n = server;
- struct sockaddr_storage ss;
- int tried_reverse = 0;
- int port_try_first;
- int port_try_next;
int is_ipc = (share != NULL && strcmp(share, "IPC$") == 0);
- uint32 fs_attrs = 0;
- const char *username_used;
+ uint32_t fs_attrs = 0;
+ const char *username_used = NULL;
+ const char *password_used = NULL;
NTSTATUS status;
+ char *newserver, *newshare;
+ int flags = 0;
+ struct smbXcli_tcon *tcon = NULL;
+ int signing_state = SMB_SIGNING_DEFAULT;
- zero_sockaddr(&ss);
ZERO_STRUCT(c);
+ *in_cache = false;
if (server[0] == 0) {
errno = EPERM;
* server...
*/
if (srv &&
- *share != '\0' &&
+ share != NULL && *share != '\0' &&
smbc_getOptionOneSharePerServer(context)) {
/*
* disconnect if the requested share is not the same as the
* one that was already connected.
*/
- if (srv->cli->cnum == (uint16) -1) {
+
+ /*
+ * Use srv->cli->desthost and srv->cli->share instead of
+ * server and share below to connect to the actual share,
+ * i.e., a normal share or a referred share from
+ * 'msdfs proxy' share.
+ */
+ if (!cli_state_has_tcon(srv->cli)) {
/* Ensure we have accurate auth info */
- SMBC_call_auth_fn(ctx, context, server, share,
+ SMBC_call_auth_fn(ctx, context,
+ smbXcli_conn_remote_name(srv->cli->conn),
+ srv->cli->share,
pp_workgroup,
pp_username,
pp_password);
* tid.
*/
- status = cli_tcon_andx(srv->cli, share, "?????",
- *pp_password,
- strlen(*pp_password)+1);
+ status = cli_tree_connect(srv->cli,
+ srv->cli->share,
+ "?????",
+ *pp_password);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
cli_shutdown(srv->cli);
if (is_ipc) {
DEBUG(4,
("IPC$ so ignore case sensitivity\n"));
- } else if (!cli_get_fs_attr_info(c, &fs_attrs)) {
+ status = NT_STATUS_OK;
+ } else {
+ status = cli_get_fs_attr_info(c, &fs_attrs);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(4, ("Could not retrieve "
"case sensitivity flag: %s.\n",
- cli_errstr(c)));
+ nt_errstr(status)));
/*
* We can't determine the case sensitivity of
} else {
cli_set_case_sensitive(c, False);
}
- } else {
+ } else if (!is_ipc) {
DEBUG(4,
("Case sensitive: %s\n",
(fs_attrs & FILE_CASE_SENSITIVE_SEARCH
* server and share
*/
if (srv) {
- srv->dev = (dev_t)(str_checksum(server) ^
- str_checksum(share));
+ const char *remote_name =
+ smbXcli_conn_remote_name(srv->cli->conn);
+
+ srv->dev = (dev_t)(str_checksum(remote_name) ^
+ str_checksum(srv->cli->share));
}
}
}
if (srv) {
/* ... then we're done here. Give 'em what they came for. */
+ *in_cache = true;
goto done;
}
return NULL;
}
- make_nmb_name(&calling, smbc_getNetbiosName(context), 0x0);
- make_nmb_name(&called , server, 0x20);
-
DEBUG(4,("SMBC_server: server_n=[%s] server=[%s]\n", server_n, server));
DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
-again:
+ status = NT_STATUS_UNSUCCESSFUL;
- zero_sockaddr(&ss);
-
- /* have to open a new connection */
- if ((c = cli_initialise()) == NULL) {
- errno = ENOMEM;
- return NULL;
+ if (smbc_getOptionUseKerberos(context)) {
+ flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
}
- if (smbc_getOptionUseKerberos(context)) {
- c->use_kerberos = True;
+ if (smbc_getOptionFallbackAfterKerberos(context)) {
+ flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
}
- if (smbc_getOptionFallbackAfterKerberos(context)) {
- c->fallback_after_kerberos = True;
+ if (smbc_getOptionUseCCache(context)) {
+ flags |= CLI_FULL_CONNECTION_USE_CCACHE;
}
- c->timeout = smbc_getTimeout(context);
-
- /*
- * Force use of port 139 for first try if share is $IPC, empty, or
- * null, so browse lists can work
- */
- if (share == NULL || *share == '\0' || is_ipc) {
- port_try_first = 139;
- port_try_next = 445;
- } else {
- port_try_first = 445;
- port_try_next = 139;
- }
-
- c->port = port_try_first;
-
- status = cli_connect(c, server_n, &ss);
- if (!NT_STATUS_IS_OK(status)) {
+ if (smbc_getOptionUseNTHash(context)) {
+ flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
+ }
- /* First connection attempt failed. Try alternate port. */
- c->port = port_try_next;
+ if (context->internal->smb_encryption_level != SMBC_ENCRYPTLEVEL_NONE) {
+ signing_state = SMB_SIGNING_REQUIRED;
+ }
- status = cli_connect(c, server_n, &ss);
- if (!NT_STATUS_IS_OK(status)) {
- cli_shutdown(c);
- errno = ETIMEDOUT;
- return NULL;
+ if (port == 0) {
+ if (share == NULL || *share == '\0' || is_ipc) {
+ /*
+ * Try 139 first for IPC$
+ */
+ status = cli_connect_nb(server_n, NULL, NBT_SMB_PORT, 0x20,
+ smbc_getNetbiosName(context),
+ signing_state, flags, &c);
}
}
- if (!cli_session_request(c, &calling, &called)) {
- cli_shutdown(c);
- if (strcmp(called.name, "*SMBSERVER")) {
- make_nmb_name(&called , "*SMBSERVER", 0x20);
- goto again;
- } else { /* Try one more time, but ensure we don't loop */
-
- /* Only try this if server is an IP address ... */
-
- if (is_ipaddress(server) && !tried_reverse) {
- fstring remote_name;
- struct sockaddr_storage rem_ss;
-
- if (!interpret_string_addr(&rem_ss, server,
- NI_NUMERICHOST)) {
- DEBUG(4, ("Could not convert IP address "
- "%s to struct sockaddr_storage\n",
- server));
- errno = ETIMEDOUT;
- return NULL;
- }
-
- tried_reverse++; /* Yuck */
+ if (!NT_STATUS_IS_OK(status)) {
+ /*
+ * No IPC$ or 139 did not work
+ */
+ status = cli_connect_nb(server_n, NULL, port, 0x20,
+ smbc_getNetbiosName(context),
+ signing_state, flags, &c);
+ }
- if (name_status_find("*", 0, 0,
- &rem_ss, remote_name)) {
- make_nmb_name(&called,
- remote_name,
- 0x20);
- goto again;
- }
- }
- }
- errno = ETIMEDOUT;
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
return NULL;
}
- DEBUG(4,(" session request ok\n"));
-
- status = cli_negprot(c);
+ cli_set_timeout(c, smbc_getTimeout(context));
+ status = smbXcli_negprot(c->conn, c->timeout,
+ lp_client_min_protocol(),
+ lp_client_max_protocol());
if (!NT_STATUS_IS_OK(status)) {
cli_shutdown(c);
errno = ETIMEDOUT;
return NULL;
}
- username_used = *pp_username;
+ if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
+ /* Ensure we ask for some initial credits. */
+ smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
+ }
+
+ username_used = *pp_username;
+ password_used = *pp_password;
if (!NT_STATUS_IS_OK(cli_session_setup(c, username_used,
- *pp_password,
- strlen(*pp_password),
- *pp_password,
- strlen(*pp_password),
+ password_used,
*pp_workgroup))) {
/* Failed. Try an anonymous login, if allowed by flags. */
- username_used = "";
+ username_used = "";
+ password_used = "";
if (smbc_getOptionNoAutoAnonymousLogin(context) ||
- !NT_STATUS_IS_OK(cli_session_setup(c, username_used,
- *pp_password, 1,
- *pp_password, 0,
+ !NT_STATUS_IS_OK(cli_session_setup(c, username_used,
+ password_used,
*pp_workgroup))) {
cli_shutdown(c);
DEBUG(4,(" session setup ok\n"));
- status = cli_tcon_andx(c, share, "?????", *pp_password,
- strlen(*pp_password)+1);
+ /* here's the fun part....to support 'msdfs proxy' shares
+ (on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
+ here before trying to connect to the original share.
+ cli_check_msdfs_proxy() will fail if it is a normal share. */
+
+ if (smbXcli_conn_dfs_supported(c->conn) &&
+ cli_check_msdfs_proxy(ctx, c, share,
+ &newserver, &newshare,
+ /* FIXME: cli_check_msdfs_proxy() does
+ not support smbc_smb_encrypt_level type */
+ context->internal->smb_encryption_level ?
+ true : false,
+ *pp_username,
+ *pp_password,
+ *pp_workgroup)) {
+ cli_shutdown(c);
+ srv = SMBC_server_internal(ctx, context, connect_if_not_found,
+ newserver, port, newshare, pp_workgroup,
+ pp_username, pp_password, in_cache);
+ TALLOC_FREE(newserver);
+ TALLOC_FREE(newshare);
+ return srv;
+ }
+
+ /* must be a normal share */
+
+ status = cli_tree_connect(c, share, "?????", *pp_password);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
cli_shutdown(c);
DEBUG(4,(" tconx ok\n"));
+ if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
+ tcon = c->smb2.tcon;
+ } else {
+ tcon = c->smb1.tcon;
+ }
+
/* Determine if this share supports case sensitivity */
if (is_ipc) {
DEBUG(4, ("IPC$ so ignore case sensitivity\n"));
- } else if (!cli_get_fs_attr_info(c, &fs_attrs)) {
+ status = NT_STATUS_OK;
+ } else {
+ status = cli_get_fs_attr_info(c, &fs_attrs);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(4, ("Could not retrieve case sensitivity flag: %s.\n",
- cli_errstr(c)));
+ nt_errstr(status)));
/*
* We can't determine the case sensitivity of the share. We
} else {
cli_set_case_sensitive(c, False);
}
- } else {
+ } else if (!is_ipc) {
DEBUG(4, ("Case sensitive: %s\n",
(fs_attrs & FILE_CASE_SENSITIVE_SEARCH
? "True"
: "False")));
- cli_set_case_sensitive(c,
- (fs_attrs & FILE_CASE_SENSITIVE_SEARCH
- ? True
- : False));
+ smbXcli_tcon_set_fs_attributes(tcon, fs_attrs);
}
if (context->internal->smb_encryption_level) {
- /* Attempt UNIX smb encryption. */
- if (!NT_STATUS_IS_OK(cli_force_encryption(c,
- username_used,
- *pp_password,
- *pp_workgroup))) {
+ /* Attempt encryption. */
+ status = cli_cm_force_encryption(c,
+ username_used,
+ password_used,
+ *pp_workgroup,
+ share);
+ if (!NT_STATUS_IS_OK(status)) {
/*
* context->smb_encryption_level == 1
srv = SMB_MALLOC_P(SMBCSRV);
if (!srv) {
+ cli_shutdown(c);
errno = ENOMEM;
- goto failed;
+ return NULL;
}
ZERO_STRUCTP(srv);
- srv->cli = c;
+ DLIST_ADD(srv->cli, c);
srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
srv->no_pathinfo = False;
srv->no_pathinfo2 = False;
+ srv->no_pathinfo3 = False;
srv->no_nt_session = False;
- /* now add it to the cache (internal or external) */
- /* Let the cache function set errno if it wants to */
- errno = 0;
- if (smbc_getFunctionAddCachedServer(context)(context, srv,
- server, share,
- *pp_workgroup,
- *pp_username)) {
- int saved_errno = errno;
- DEBUG(3, (" Failed to add server to cache\n"));
- errno = saved_errno;
- if (errno == 0) {
- errno = ENOMEM;
- }
- goto failed;
- }
-
- DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
- server, share, srv));
-
- DLIST_ADD(context->internal->servers, srv);
done:
if (!pp_workgroup || !*pp_workgroup || !**pp_workgroup) {
workgroup = talloc_strdup(ctx, smbc_getWorkgroup(context));
workgroup = *pp_workgroup;
}
if(!workgroup) {
+ if (c != NULL) {
+ cli_shutdown(c);
+ }
+ SAFE_FREE(srv);
return NULL;
}
-
+
/* set the credentials to make DFS work */
smbc_set_credentials_with_fallback(context,
workgroup,
*pp_username,
*pp_password);
-
+
return srv;
+}
+
+SMBCSRV *
+SMBC_server(TALLOC_CTX *ctx,
+ SMBCCTX *context,
+ bool connect_if_not_found,
+ const char *server,
+ uint16_t port,
+ const char *share,
+ char **pp_workgroup,
+ char **pp_username,
+ char **pp_password)
+{
+ SMBCSRV *srv=NULL;
+ bool in_cache = false;
+
+ srv = SMBC_server_internal(ctx, context, connect_if_not_found,
+ server, port, share, pp_workgroup,
+ pp_username, pp_password, &in_cache);
-failed:
- cli_shutdown(c);
if (!srv) {
return NULL;
}
+ if (in_cache) {
+ return srv;
+ }
- SAFE_FREE(srv);
- return NULL;
+ /* Now add it to the cache (internal or external) */
+ /* Let the cache function set errno if it wants to */
+ errno = 0;
+ if (smbc_getFunctionAddCachedServer(context)(context, srv,
+ server, share,
+ *pp_workgroup,
+ *pp_username)) {
+ int saved_errno = errno;
+ DEBUG(3, (" Failed to add server to cache\n"));
+ errno = saved_errno;
+ if (errno == 0) {
+ errno = ENOMEM;
+ }
+ SAFE_FREE(srv);
+ return NULL;
+ }
+
+ DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
+ server, share, srv));
+
+ DLIST_ADD(context->internal->servers, srv);
+ return srv;
}
/*
SMBC_attr_server(TALLOC_CTX *ctx,
SMBCCTX *context,
const char *server,
+ uint16_t port,
const char *share,
char **pp_workgroup,
char **pp_username,
char **pp_password)
{
int flags;
- struct sockaddr_storage ss;
- struct cli_state *ipc_cli;
- struct rpc_pipe_client *pipe_hnd;
+ struct cli_state *ipc_cli = NULL;
+ struct rpc_pipe_client *pipe_hnd = NULL;
NTSTATUS nt_status;
+ SMBCSRV *srv=NULL;
SMBCSRV *ipc_srv=NULL;
+ /*
+ * Use srv->cli->desthost and srv->cli->share instead of
+ * server and share below to connect to the actual share,
+ * i.e., a normal share or a referred share from
+ * 'msdfs proxy' share.
+ */
+ srv = SMBC_server(ctx, context, true, server, port, share,
+ pp_workgroup, pp_username, pp_password);
+ if (!srv) {
+ return NULL;
+ }
+ server = smbXcli_conn_remote_name(srv->cli->conn);
+ share = srv->cli->share;
+
/*
* See if we've already created this special connection. Reference
* our "special" share name '*IPC$', which is an impossible real share
ipc_srv = SMBC_find_server(ctx, context, server, "*IPC$",
pp_workgroup, pp_username, pp_password);
if (!ipc_srv) {
+ int signing_state = SMB_SIGNING_DEFAULT;
/* We didn't find a cached connection. Get the password */
if (!*pp_password || (*pp_password)[0] == '\0') {
if (smbc_getOptionUseKerberos(context)) {
flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
}
+ if (smbc_getOptionUseCCache(context)) {
+ flags |= CLI_FULL_CONNECTION_USE_CCACHE;
+ }
+ if (context->internal->smb_encryption_level != SMBC_ENCRYPTLEVEL_NONE) {
+ signing_state = SMB_SIGNING_REQUIRED;
+ }
- zero_sockaddr(&ss);
nt_status = cli_full_connection(&ipc_cli,
- global_myname(), server,
- &ss, 0, "IPC$", "?????",
+ lp_netbios_name(), server,
+ NULL, 0, "IPC$", "?????",
*pp_username,
*pp_workgroup,
*pp_password,
flags,
- Undefined, NULL);
+ signing_state);
if (! NT_STATUS_IS_OK(nt_status)) {
DEBUG(1,("cli_full_connection failed! (%s)\n",
nt_errstr(nt_status)));
}
if (context->internal->smb_encryption_level) {
- /* Attempt UNIX smb encryption. */
- if (!NT_STATUS_IS_OK(cli_force_encryption(ipc_cli,
- *pp_username,
- *pp_password,
- *pp_workgroup))) {
+ /* Attempt encryption. */
+ nt_status = cli_cm_force_encryption(ipc_cli,
+ *pp_username,
+ *pp_password,
+ *pp_workgroup,
+ "IPC$");
+ if (!NT_STATUS_IS_OK(nt_status)) {
/*
* context->smb_encryption_level ==
}
ZERO_STRUCTP(ipc_srv);
- ipc_srv->cli = ipc_cli;
+ DLIST_ADD(ipc_srv->cli, ipc_cli);
nt_status = cli_rpc_pipe_open_noauth(
- ipc_srv->cli, &ndr_table_lsarpc.syntax_id, &pipe_hnd);
+ ipc_srv->cli, &ndr_table_lsarpc, &pipe_hnd);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("cli_nt_session_open fail!\n"));
errno = ENOTSUP;
/*
* Some systems don't support
- * SEC_RIGHTS_MAXIMUM_ALLOWED, but NT sends 0x2000000
+ * SEC_FLAG_MAXIMUM_ALLOWED, but NT sends 0x2000000
* so we might as well do it too.
*/
if (!NT_STATUS_IS_OK(nt_status)) {
errno = SMBC_errno(context, ipc_srv->cli);
cli_shutdown(ipc_srv->cli);
+ free(ipc_srv);
return NULL;
}