#include "includes.h"
#include "system/filesys.h"
+#include "system/passwd.h" /* uid_wrapper */
#include "../lib/tsocket/tsocket.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "printing/pcap.h"
#include "passdb/lookup_sid.h"
#include "auth.h"
+#include "lib/param/loadparm.h"
+#include "messages.h"
extern userdom_struct current_user_info;
This function modifies dev, ecode.
****************************************************************************/
-static NTSTATUS share_sanity_checks(struct client_address *client_id, int snum,
+static NTSTATUS share_sanity_checks(const struct tsocket_address *remote_address,
+ const char *rhost,
+ int snum,
fstring dev)
{
- if (!lp_snum_ok(snum) ||
+ char *raddr;
+
+ raddr = tsocket_address_inet_addr_string(remote_address,
+ talloc_tos());
+ if (raddr == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!lp_snum_ok(snum) ||
!allow_access(lp_hostsdeny(snum), lp_hostsallow(snum),
- client_id->name, client_id->addr)) {
+ rhost, raddr)) {
return NT_STATUS_ACCESS_DENIED;
}
}
/****************************************************************************
- Create an auth_serversupplied_info structure for a connection_struct
+ Create an auth_session_info structure for a connection_struct
****************************************************************************/
static NTSTATUS create_connection_session_info(struct smbd_server_connection *sconn,
TALLOC_CTX *mem_ctx, int snum,
- struct auth_serversupplied_info *vuid_serverinfo,
- DATA_BLOB password,
- struct auth_serversupplied_info **presult)
+ struct auth_session_info *session_info,
+ struct auth_session_info **presult)
{
if (lp_guest_only(snum)) {
- return make_server_info_guest(mem_ctx, presult);
+ return make_session_info_guest(mem_ctx, presult);
}
- if (vuid_serverinfo != NULL) {
+ if (session_info != NULL) {
- struct auth_serversupplied_info *result;
+ struct auth_session_info *result;
/*
* This is the normal security != share case where we have a
* valid vuid from the session setup. */
- if (vuid_serverinfo->guest) {
- if (!lp_guest_ok(snum)) {
+ if (security_session_user_level(session_info, NULL) < SECURITY_USER) {
+ if (!lp_guest_ok(snum)) {
DEBUG(2, ("guest user (from session setup) "
"not permitted to access this share "
"(%s)\n", lp_servicename(snum)));
return NT_STATUS_ACCESS_DENIED;
}
} else {
- if (!user_ok_token(vuid_serverinfo->unix_name,
- vuid_serverinfo->info3->base.domain.string,
- vuid_serverinfo->security_token, snum)) {
+ if (!user_ok_token(session_info->unix_info->unix_name,
+ session_info->info->domain_name,
+ session_info->security_token, snum)) {
DEBUG(2, ("user '%s' (from session setup) not "
"permitted to access this share "
"(%s)\n",
- vuid_serverinfo->unix_name,
+ session_info->unix_info->unix_name,
lp_servicename(snum)));
return NT_STATUS_ACCESS_DENIED;
}
}
- result = copy_serverinfo(mem_ctx, vuid_serverinfo);
+ result = copy_session_info(mem_ctx, session_info);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
- if (lp_security() == SEC_SHARE) {
-
- fstring user;
- bool guest;
-
- /* add the sharename as a possible user name if we
- are in share mode security */
-
- add_session_user(sconn, lp_servicename(snum));
-
- /* shall we let them in? */
-
- if (!authorise_login(sconn, snum,user,password,&guest)) {
- DEBUG( 2, ( "Invalid username/password for [%s]\n",
- lp_servicename(snum)) );
- return NT_STATUS_WRONG_PASSWORD;
- }
-
- return make_session_info_from_username(mem_ctx, user, guest,
- presult);
- }
-
- DEBUG(0, ("invalid VUID (vuser) but not in security=share\n"));
+ DEBUG(0, ("invalid VUID (vuser)\n"));
return NT_STATUS_ACCESS_DENIED;
}
*/
char *fuser;
- struct auth_serversupplied_info *forced_serverinfo;
+ struct auth_session_info *forced_serverinfo;
+ bool guest;
fuser = talloc_string_sub(conn, lp_force_user(snum), "%S",
lp_const_servicename(snum));
return NT_STATUS_NO_MEMORY;
}
+ guest = security_session_user_level(conn->session_info, NULL) < SECURITY_USER;
+
status = make_session_info_from_username(
- conn, fuser, conn->session_info->guest,
+ conn, fuser,
+ guest,
&forced_serverinfo);
if (!NT_STATUS_IS_OK(status)) {
return status;
if (*lp_force_group(snum)) {
status = find_forced_group(
- conn->force_user, snum, conn->session_info->unix_name,
+ conn->force_user, snum, conn->session_info->unix_info->unix_name,
&conn->session_info->security_token->sids[1],
- &conn->session_info->utok.gid);
+ &conn->session_info->unix_token->gid);
if (!NT_STATUS_IS_OK(status)) {
return status;
* struct. We only use conn->session_info directly if
* "force_user" was set.
*/
- conn->force_group_gid = conn->session_info->utok.gid;
+ conn->force_group_gid = conn->session_info->unix_token->gid;
}
return NT_STATUS_OK;
}
+/****************************************************************************
+ Setup the share access mask for a connection.
+****************************************************************************/
+
+static void create_share_access_mask(connection_struct *conn, int snum)
+{
+ const struct security_token *token = conn->session_info->security_token;
+
+ share_access_check(token,
+ lp_servicename(snum),
+ MAXIMUM_ALLOWED_ACCESS,
+ &conn->share_access);
+
+ if (security_token_has_privilege(token, SEC_PRIV_SECURITY)) {
+ conn->share_access |= SEC_FLAG_SYSTEM_SECURITY;
+ }
+ if (security_token_has_privilege(token, SEC_PRIV_RESTORE)) {
+ conn->share_access |= (SEC_RIGHTS_PRIV_RESTORE);
+ }
+ if (security_token_has_privilege(token, SEC_PRIV_BACKUP)) {
+ conn->share_access |= (SEC_RIGHTS_PRIV_BACKUP);
+ }
+ if (security_token_has_privilege(token, SEC_PRIV_TAKE_OWNERSHIP)) {
+ conn->share_access |= (SEC_STD_WRITE_OWNER);
+ }
+}
+
/****************************************************************************
Make a connection, given the snum to connect to, and the vuser of the
connecting user if appropriate.
****************************************************************************/
-connection_struct *make_connection_snum(struct smbd_server_connection *sconn,
+static NTSTATUS make_connection_snum(struct smbd_server_connection *sconn,
+ connection_struct *conn,
int snum, user_struct *vuser,
- DATA_BLOB password,
- const char *pdev,
- NTSTATUS *pstatus)
+ const char *pdev)
{
- connection_struct *conn = NULL;
struct smb_filename *smb_fname_cpath = NULL;
fstring dev;
int ret;
fstrcpy(dev, pdev);
- *pstatus = share_sanity_checks(&sconn->client_id, snum, dev);
- if (NT_STATUS_IS_ERR(*pstatus)) {
- goto err_root_exit;
- }
-
- conn = conn_new(sconn);
- if (!conn) {
- DEBUG(0,("Couldn't find free connection.\n"));
- *pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
+ status = share_sanity_checks(sconn->remote_address,
+ sconn->remote_hostname,
+ snum,
+ dev);
+ if (NT_STATUS_IS_ERR(status)) {
goto err_root_exit;
}
conn->params->service = snum;
status = create_connection_session_info(sconn,
- conn, snum, vuser ? vuser->session_info : NULL, password,
+ conn, snum, vuser ? vuser->session_info : NULL,
&conn->session_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("create_connection_session_info failed: %s\n",
nt_errstr(status)));
- *pstatus = status;
goto err_root_exit;
}
- if ((lp_guest_only(snum)) || (lp_security() == SEC_SHARE)) {
+ if (lp_guest_only(snum)) {
conn->force_user = true;
}
- add_session_user(sconn, conn->session_info->unix_name);
-
conn->num_files_open = 0;
conn->lastused = conn->lastused_count = time(NULL);
conn->used = True;
status = set_conn_force_user_group(conn, snum);
if (!NT_STATUS_IS_OK(status)) {
- conn_free(conn);
- *pstatus = status;
- return NULL;
+ goto err_root_exit;
}
- conn->vuid = (vuser != NULL) ? vuser->vuid : UID_FIELD_INVALID;
+ conn->vuid = vuser->vuid;
{
char *s = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
- conn->session_info->unix_name,
+ conn->session_info->unix_info->unix_name,
conn->connectpath,
- conn->session_info->utok.gid,
- conn->session_info->sanitized_username,
- conn->session_info->info3->base.domain.string,
+ conn->session_info->unix_token->gid,
+ conn->session_info->unix_info->sanitized_username,
+ conn->session_info->info->domain_name,
lp_pathname(snum));
if (!s) {
- *pstatus = NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
if (!set_conn_connectpath(conn,s)) {
TALLOC_FREE(s);
- *pstatus = NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
goto err_root_exit;
}
DEBUG(3,("Connect path is '%s' for service [%s]\n",s,
*
*/
- {
- bool can_write = False;
-
- can_write = share_access_check(conn->session_info->security_token,
- lp_servicename(snum),
- FILE_WRITE_DATA);
-
- if (!can_write) {
- if (!share_access_check(conn->session_info->security_token,
- lp_servicename(snum),
- FILE_READ_DATA)) {
- /* No access, read or write. */
- DEBUG(0,("make_connection: connection to %s "
- "denied due to security "
- "descriptor.\n",
- lp_servicename(snum)));
- *pstatus = NT_STATUS_ACCESS_DENIED;
- goto err_root_exit;
- } else {
- conn->read_only = True;
- }
+ create_share_access_mask(conn, snum);
+
+ if ((conn->share_access & FILE_WRITE_DATA) == 0) {
+ if ((conn->share_access & FILE_READ_DATA) == 0) {
+ /* No access, read or write. */
+ DEBUG(0,("make_connection: connection to %s "
+ "denied due to security "
+ "descriptor.\n",
+ lp_servicename(snum)));
+ status = NT_STATUS_ACCESS_DENIED;
+ goto err_root_exit;
+ } else {
+ conn->read_only = True;
}
}
/* Initialise VFS function pointers */
if (!smbd_vfs_init(conn)) {
DEBUG(0, ("vfs_init failed for service %s\n",
lp_servicename(snum)));
- *pstatus = NT_STATUS_BAD_NETWORK_NAME;
+ status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
DEBUG(1, ("Max connections (%d) exceeded for %s\n",
lp_max_connections(snum), lp_servicename(snum)));
- *pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
+ status = NT_STATUS_INSUFFICIENT_RESOURCES;
goto err_root_exit;
}
*/
if (!claim_connection(conn, lp_servicename(snum))) {
DEBUG(1, ("Could not store connections entry\n"));
- *pstatus = NT_STATUS_INTERNAL_DB_ERROR;
+ status = NT_STATUS_INTERNAL_DB_ERROR;
goto err_root_exit;
}
claimed_connection = true;
filesystem operation that we do. */
if (SMB_VFS_CONNECT(conn, lp_servicename(snum),
- conn->session_info->unix_name) < 0) {
+ conn->session_info->unix_info->unix_name) < 0) {
DEBUG(0,("make_connection: VFS make connection failed!\n"));
- *pstatus = NT_STATUS_UNSUCCESSFUL;
+ status = NT_STATUS_UNSUCCESSFUL;
goto err_root_exit;
}
if ((!conn->printer) && (!conn->ipc)) {
conn->notify_ctx = notify_init(conn,
- sconn_server_id(sconn),
+ messaging_server_id(sconn->msg_ctx),
sconn->msg_ctx,
- server_event_context(),
+ sconn->ev_ctx,
conn);
}
if (*lp_rootpreexec(snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
- conn->session_info->unix_name,
+ conn->session_info->unix_info->unix_name,
conn->connectpath,
- conn->session_info->utok.gid,
- conn->session_info->sanitized_username,
- conn->session_info->info3->base.domain.string,
+ conn->session_info->unix_token->gid,
+ conn->session_info->unix_info->sanitized_username,
+ conn->session_info->info->domain_name,
lp_rootpreexec(snum));
DEBUG(5,("cmd=%s\n",cmd));
ret = smbrun(cmd,NULL);
if (ret != 0 && lp_rootpreexec_close(snum)) {
DEBUG(1,("root preexec gave %d - failing "
"connection\n", ret));
- *pstatus = NT_STATUS_ACCESS_DENIED;
+ status = NT_STATUS_ACCESS_DENIED;
goto err_root_exit;
}
}
if (!change_to_user(conn, conn->vuid)) {
/* No point continuing if they fail the basic checks */
DEBUG(0,("Can't become connected user!\n"));
- *pstatus = NT_STATUS_LOGON_FAILURE;
+ status = NT_STATUS_LOGON_FAILURE;
goto err_root_exit;
}
if (*lp_preexec(snum)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
- conn->session_info->unix_name,
+ conn->session_info->unix_info->unix_name,
conn->connectpath,
- conn->session_info->utok.gid,
- conn->session_info->sanitized_username,
- conn->session_info->info3->base.domain.string,
+ conn->session_info->unix_token->gid,
+ conn->session_info->unix_info->sanitized_username,
+ conn->session_info->info->domain_name,
lp_preexec(snum));
ret = smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (ret != 0 && lp_preexec_close(snum)) {
DEBUG(1,("preexec gave %d - failing connection\n",
ret));
- *pstatus = NT_STATUS_ACCESS_DENIED;
+ status = NT_STATUS_ACCESS_DENIED;
goto err_root_exit;
}
}
"for service %s, path %s\n",
lp_servicename(snum),
conn->connectpath));
- *pstatus = NT_STATUS_BAD_NETWORK_NAME;
+ status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
}
status = create_synthetic_smb_fname(talloc_tos(), conn->connectpath,
NULL, NULL, &smb_fname_cpath);
if (!NT_STATUS_IS_OK(status)) {
- *pstatus = status;
goto err_root_exit;
}
conn->connectpath, lp_servicename(snum),
strerror(errno) ));
}
- *pstatus = NT_STATUS_BAD_NETWORK_NAME;
+ status = NT_STATUS_BAD_NETWORK_NAME;
goto err_root_exit;
}
conn->base_share_dev = smb_fname_cpath->st.st_ex_dev;
if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
dbgtext( "%s (%s) ", get_remote_machine_name(),
- conn->sconn->client_id.addr );
+ tsocket_address_string(conn->sconn->remote_address,
+ talloc_tos()) );
dbgtext( "%s", srv_is_signing_active(sconn) ? "signed " : "");
dbgtext( "connect to service %s ", lp_servicename(snum) );
dbgtext( "initially as user %s ",
- conn->session_info->unix_name );
+ conn->session_info->unix_info->unix_name );
dbgtext( "(uid=%d, gid=%d) ", (int)effuid, (int)effgid );
dbgtext( "(pid %d)\n", (int)sys_getpid() );
}
- return(conn);
+ return status;
err_root_exit:
+
TALLOC_FREE(smb_fname_cpath);
/* We must exit this function as root. */
if (geteuid() != 0) {
if (claimed_connection) {
yield_connection(conn, lp_servicename(snum));
}
- if (conn) {
+ return status;
+}
+
+/****************************************************************************
+ Make a connection to a service from SMB1. Internal interface.
+****************************************************************************/
+
+static connection_struct *make_connection_smb1(struct smbd_server_connection *sconn,
+ int snum, user_struct *vuser,
+ const char *pdev,
+ NTSTATUS *pstatus)
+{
+ connection_struct *conn = conn_new(sconn);
+ if (!conn) {
+ DEBUG(0,("make_connection_smb1: Couldn't find free connection.\n"));
+ *pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
+ return NULL;
+ }
+ *pstatus = make_connection_snum(sconn,
+ conn,
+ snum,
+ vuser,
+ pdev);
+ if (!NT_STATUS_IS_OK(*pstatus)) {
conn_free(conn);
+ return NULL;
}
- return NULL;
+ return conn;
}
/****************************************************************************
- Make a connection to a service.
+ Make a connection to a service from SMB2. External SMB2 interface.
+ We must set cnum before claiming connection.
+****************************************************************************/
+
+connection_struct *make_connection_smb2(struct smbd_server_connection *sconn,
+ struct smbd_smb2_tcon *tcon,
+ user_struct *vuser,
+ const char *pdev,
+ NTSTATUS *pstatus)
+{
+ connection_struct *conn = conn_new(sconn);
+ if (!conn) {
+ DEBUG(0,("make_connection_smb2: Couldn't find free connection.\n"));
+ *pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
+ return NULL;
+ }
+ conn->cnum = tcon->tid;
+ *pstatus = make_connection_snum(sconn,
+ conn,
+ tcon->snum,
+ vuser,
+ pdev);
+ if (!NT_STATUS_IS_OK(*pstatus)) {
+ conn_free(conn);
+ return NULL;
+ }
+ return conn;
+}
+
+/****************************************************************************
+ Make a connection to a service. External SMB1 interface.
*
* @param service
****************************************************************************/
connection_struct *make_connection(struct smbd_server_connection *sconn,
- const char *service_in, DATA_BLOB password,
+ const char *service_in,
const char *pdev, uint16 vuid,
NTSTATUS *status)
{
return NULL;
}
- if(lp_security() != SEC_SHARE) {
- vuser = get_valid_user_struct(sconn, vuid);
- if (!vuser) {
- DEBUG(1,("make_connection: refusing to connect with "
- "no session setup\n"));
- *status = NT_STATUS_ACCESS_DENIED;
- return NULL;
- }
+ vuser = get_valid_user_struct(sconn, vuid);
+ if (!vuser) {
+ DEBUG(1,("make_connection: refusing to connect with "
+ "no session setup\n"));
+ *status = NT_STATUS_ACCESS_DENIED;
+ return NULL;
}
/* Logic to try and connect to the correct [homes] share, preferably
*/
if (strequal(service_in,HOMES_NAME)) {
- if(lp_security() != SEC_SHARE) {
- DATA_BLOB no_pw = data_blob_null;
- if (vuser->homes_snum == -1) {
- DEBUG(2, ("[homes] share not available for "
- "this user because it was not found "
- "or created at session setup "
- "time\n"));
- *status = NT_STATUS_BAD_NETWORK_NAME;
- return NULL;
- }
- DEBUG(5, ("making a connection to [homes] service "
- "created at session setup time\n"));
- return make_connection_snum(sconn,
- vuser->homes_snum,
- vuser, no_pw,
- dev, status);
- } else {
- /* Security = share. Try with
- * current_user_info.smb_name as the username. */
- if (*current_user_info.smb_name) {
- char *unix_username = NULL;
- (void)map_username(talloc_tos(),
- current_user_info.smb_name,
- &unix_username);
- snum = find_service(talloc_tos(),
- unix_username,
- &unix_username);
- if (!unix_username) {
- *status = NT_STATUS_NO_MEMORY;
- }
- return NULL;
- }
- if (snum != -1) {
- DEBUG(5, ("making a connection to 'homes' "
- "service %s based on "
- "security=share\n", service_in));
- return make_connection_snum(sconn,
- snum, NULL,
- password,
- dev, status);
- }
+ if (vuser->homes_snum == -1) {
+ DEBUG(2, ("[homes] share not available for "
+ "this user because it was not found "
+ "or created at session setup "
+ "time\n"));
+ *status = NT_STATUS_BAD_NETWORK_NAME;
+ return NULL;
}
- } else if ((lp_security() != SEC_SHARE) && (vuser->homes_snum != -1)
+ DEBUG(5, ("making a connection to [homes] service "
+ "created at session setup time\n"));
+ return make_connection_smb1(sconn,
+ vuser->homes_snum,
+ vuser,
+ dev, status);
+ } else if ((vuser->homes_snum != -1)
&& strequal(service_in,
lp_servicename(vuser->homes_snum))) {
- DATA_BLOB no_pw = data_blob_null;
DEBUG(5, ("making a connection to 'homes' service [%s] "
"created at session setup time\n", service_in));
- return make_connection_snum(sconn,
+ return make_connection_smb1(sconn,
vuser->homes_snum,
- vuser, no_pw,
+ vuser,
dev, status);
}
DEBUG(5, ("making a connection to 'normal' service %s\n", service));
- return make_connection_snum(sconn, snum, vuser,
- password,
+ return make_connection_smb1(sconn, snum, vuser,
dev, status);
}
DEBUG(IS_IPC(conn)?3:1, ("%s (%s) closed connection to service %s\n",
get_remote_machine_name(),
- conn->sconn->client_id.addr,
+ tsocket_address_string(conn->sconn->remote_address,
+ talloc_tos()),
lp_servicename(SNUM(conn))));
/* Call VFS disconnect hook */
change_to_user(conn, vuid)) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
- conn->session_info->unix_name,
+ conn->session_info->unix_info->unix_name,
conn->connectpath,
- conn->session_info->utok.gid,
- conn->session_info->sanitized_username,
- conn->session_info->info3->base.domain.string,
+ conn->session_info->unix_token->gid,
+ conn->session_info->unix_info->sanitized_username,
+ conn->session_info->info->domain_name,
lp_postexec(SNUM(conn)));
smbrun(cmd,NULL);
TALLOC_FREE(cmd);
if (*lp_rootpostexec(SNUM(conn))) {
char *cmd = talloc_sub_advanced(talloc_tos(),
lp_servicename(SNUM(conn)),
- conn->session_info->unix_name,
+ conn->session_info->unix_info->unix_name,
conn->connectpath,
- conn->session_info->utok.gid,
- conn->session_info->sanitized_username,
- conn->session_info->info3->base.domain.string,
+ conn->session_info->unix_token->gid,
+ conn->session_info->unix_info->sanitized_username,
+ conn->session_info->info->domain_name,
lp_rootpostexec(SNUM(conn)));
smbrun(cmd,NULL);
TALLOC_FREE(cmd);
git.samba.org / kai / samba.git / blobdiff