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-rw-r--r--source3/rpc_server/srv_util.c323
1 files changed, 322 insertions, 1 deletions
diff --git a/source3/rpc_server/srv_util.c b/source3/rpc_server/srv_util.c
index 25dceb41a0..097ab92d76 100644
--- a/source3/rpc_server/srv_util.c
+++ b/source3/rpc_server/srv_util.c
@@ -22,4 +22,325 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* retired module */
+/* this module apparently provides an implementation of DCE/RPC over a
+ * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
+ * documentation are available (in on-line form) from the X-Open group.
+ *
+ * this module should provide a level of abstraction between SMB
+ * and DCE/RPC, while minimising the amount of mallocs, unnecessary
+ * data copies, and network traffic.
+ *
+ * in this version, which takes a "let's learn what's going on and
+ * get something running" approach, there is additional network
+ * traffic generated, but the code should be easier to understand...
+ *
+ * ... if you read the docs. or stare at packets for weeks on end.
+ *
+ */
+
+#include "includes.h"
+#include "nterr.h"
+
+extern int DEBUGLEVEL;
+
+/*
+ * A list of the rids of well known BUILTIN and Domain users
+ * and groups.
+ */
+
+rid_name builtin_alias_rids[] =
+{
+ { BUILTIN_ALIAS_RID_ADMINS , "Administrators" },
+ { BUILTIN_ALIAS_RID_USERS , "Users" },
+ { BUILTIN_ALIAS_RID_GUESTS , "Guests" },
+ { BUILTIN_ALIAS_RID_POWER_USERS , "Power Users" },
+
+ { BUILTIN_ALIAS_RID_ACCOUNT_OPS , "Account Operators" },
+ { BUILTIN_ALIAS_RID_SYSTEM_OPS , "System Operators" },
+ { BUILTIN_ALIAS_RID_PRINT_OPS , "Print Operators" },
+ { BUILTIN_ALIAS_RID_BACKUP_OPS , "Backup Operators" },
+ { BUILTIN_ALIAS_RID_REPLICATOR , "Replicator" },
+ { 0 , NULL }
+};
+
+/* array lookup of well-known Domain RID users. */
+rid_name domain_user_rids[] =
+{
+ { DOMAIN_USER_RID_ADMIN , "Administrator" },
+ { DOMAIN_USER_RID_GUEST , "Guest" },
+ { 0 , NULL }
+};
+
+/* array lookup of well-known Domain RID groups. */
+rid_name domain_group_rids[] =
+{
+ { DOMAIN_GROUP_RID_ADMINS , "Domain Admins" },
+ { DOMAIN_GROUP_RID_USERS , "Domain Users" },
+ { DOMAIN_GROUP_RID_GUESTS , "Domain Guests" },
+ { 0 , NULL }
+};
+
+int make_dom_gids(char *gids_str, DOM_GID **ppgids)
+{
+ char *ptr;
+ pstring s2;
+ int count;
+ DOM_GID *gids;
+
+ *ppgids = NULL;
+
+ DEBUG(4,("make_dom_gids: %s\n", gids_str));
+
+ if (gids_str == NULL || *gids_str == 0)
+ return 0;
+
+ for (count = 0, ptr = gids_str;
+ next_token(&ptr, s2, NULL, sizeof(s2));
+ count++)
+ ;
+
+ gids = (DOM_GID *)malloc( sizeof(DOM_GID) * count );
+ if(!gids)
+ {
+ DEBUG(0,("make_dom_gids: malloc fail !\n"));
+ return 0;
+ }
+
+ for (count = 0, ptr = gids_str;
+ next_token(&ptr, s2, NULL, sizeof(s2)) &&
+ count < LSA_MAX_GROUPS;
+ count++)
+ {
+ /* the entries are of the form GID/ATTR, ATTR being optional.*/
+ char *attr;
+ uint32 rid = 0;
+ int i;
+
+ attr = strchr(s2,'/');
+ if (attr)
+ *attr++ = 0;
+
+ if (!attr || !*attr)
+ attr = "7"; /* default value for attribute is 7 */
+
+ /* look up the RID string and see if we can turn it into a rid number */
+ for (i = 0; builtin_alias_rids[i].name != NULL; i++)
+ {
+ if (strequal(builtin_alias_rids[i].name, s2))
+ {
+ rid = builtin_alias_rids[i].rid;
+ break;
+ }
+ }
+
+ if (rid == 0)
+ rid = atoi(s2);
+
+ if (rid == 0)
+ {
+ DEBUG(1,("make_dom_gids: unknown well-known alias RID %s/%s\n", s2, attr));
+ count--;
+ }
+ else
+ {
+ gids[count].g_rid = rid;
+ gids[count].attr = atoi(attr);
+
+ DEBUG(5,("group id: %d attr: %d\n", gids[count].g_rid, gids[count].attr));
+ }
+ }
+
+ *ppgids = gids;
+ return count;
+}
+
+
+/*******************************************************************
+ gets a domain user's groups
+ ********************************************************************/
+void get_domain_user_groups(char *domain_groups, char *user)
+{
+ pstring tmp;
+
+ if (domain_groups == NULL || user == NULL) return;
+
+ /* any additional groups this user is in. e.g power users */
+ pstrcpy(domain_groups, lp_domain_groups());
+
+ /* can only be a user or a guest. cannot be guest _and_ admin */
+ if (user_in_list(user, lp_domain_guest_group()))
+ {
+ slprintf(tmp, sizeof(tmp) - 1, " %ld/7 ", DOMAIN_GROUP_RID_GUESTS);
+ pstrcat(domain_groups, tmp);
+
+ DEBUG(3,("domain guest group access %s granted\n", tmp));
+ }
+ else
+ {
+ slprintf(tmp, sizeof(tmp) -1, " %ld/7 ", DOMAIN_GROUP_RID_USERS);
+ pstrcat(domain_groups, tmp);
+
+ DEBUG(3,("domain group access %s granted\n", tmp));
+
+ if (user_in_list(user, lp_domain_admin_group()))
+ {
+ slprintf(tmp, sizeof(tmp) - 1, " %ld/7 ", DOMAIN_GROUP_RID_ADMINS);
+ pstrcat(domain_groups, tmp);
+
+ DEBUG(3,("domain admin group access %s granted\n", tmp));
+ }
+ }
+}
+
+
+/*******************************************************************
+ lookup_group_name
+ ********************************************************************/
+uint32 lookup_group_name(uint32 rid, char *group_name, uint32 *type)
+{
+ int i = 0;
+ (*type) = SID_NAME_DOM_GRP;
+
+ DEBUG(5,("lookup_group_name: rid: %d", rid));
+
+ while (domain_group_rids[i].rid != rid && domain_group_rids[i].rid != 0)
+ {
+ i++;
+ }
+
+ if (domain_group_rids[i].rid != 0)
+ {
+ fstrcpy(group_name, domain_group_rids[i].name);
+ DEBUG(5,(" = %s\n", group_name));
+ return 0x0;
+ }
+
+ DEBUG(5,(" none mapped\n"));
+ return 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
+
+/*******************************************************************
+ lookup_alias_name
+ ********************************************************************/
+uint32 lookup_alias_name(uint32 rid, char *alias_name, uint32 *type)
+{
+ int i = 0;
+ (*type) = SID_NAME_WKN_GRP;
+
+ DEBUG(5,("lookup_alias_name: rid: %d", rid));
+
+ while (builtin_alias_rids[i].rid != rid && builtin_alias_rids[i].rid != 0)
+ {
+ i++;
+ }
+
+ if (builtin_alias_rids[i].rid != 0)
+ {
+ fstrcpy(alias_name, builtin_alias_rids[i].name);
+ DEBUG(5,(" = %s\n", alias_name));
+ return 0x0;
+ }
+
+ DEBUG(5,(" none mapped\n"));
+ return 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
+
+/*******************************************************************
+ lookup_user_name
+ ********************************************************************/
+uint32 lookup_user_name(uint32 rid, char *user_name, uint32 *type)
+{
+ struct sam_disp_info *disp_info;
+ int i = 0;
+ (*type) = SID_NAME_USER;
+
+ DEBUG(5,("lookup_user_name: rid: %d", rid));
+
+ /* look up the well-known domain user rids first */
+ while (domain_user_rids[i].rid != rid && domain_user_rids[i].rid != 0)
+ {
+ i++;
+ }
+
+ if (domain_user_rids[i].rid != 0)
+ {
+ fstrcpy(user_name, domain_user_rids[i].name);
+ DEBUG(5,(" = %s\n", user_name));
+ return 0x0;
+ }
+
+ /* ok, it's a user. find the user account */
+ become_root(True);
+ disp_info = getsamdisprid(rid);
+ unbecome_root(True);
+
+ if (disp_info != NULL)
+ {
+ fstrcpy(user_name, disp_info->smb_name);
+ DEBUG(5,(" = %s\n", user_name));
+ return 0x0;
+ }
+
+ DEBUG(5,(" none mapped\n"));
+ return 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
+
+/*******************************************************************
+ lookup_group_rid
+ ********************************************************************/
+uint32 lookup_group_rid(char *group_name, uint32 *rid)
+{
+ char *grp_name;
+ int i = -1; /* start do loop at -1 */
+
+ do /* find, if it exists, a group rid for the group name*/
+ {
+ i++;
+ (*rid) = domain_group_rids[i].rid;
+ grp_name = domain_group_rids[i].name;
+
+ } while (grp_name != NULL && !strequal(grp_name, group_name));
+
+ return (grp_name != NULL) ? 0 : 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
+
+/*******************************************************************
+ lookup_alias_rid
+ ********************************************************************/
+uint32 lookup_alias_rid(char *alias_name, uint32 *rid)
+{
+ char *als_name;
+ int i = -1; /* start do loop at -1 */
+
+ do /* find, if it exists, a alias rid for the alias name*/
+ {
+ i++;
+ (*rid) = builtin_alias_rids[i].rid;
+ als_name = builtin_alias_rids[i].name;
+
+ } while (als_name != NULL && !strequal(als_name, alias_name));
+
+ return (als_name != NULL) ? 0 : 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
+
+/*******************************************************************
+ lookup_user_rid
+ ********************************************************************/
+uint32 lookup_user_rid(char *user_name, uint32 *rid)
+{
+ struct sam_passwd *sam_pass;
+ (*rid) = 0;
+
+ /* find the user account */
+ become_root(True);
+ sam_pass = getsam21pwnam(user_name);
+ unbecome_root(True);
+
+ if (sam_pass != NULL)
+ {
+ (*rid) = sam_pass->user_rid;
+ return 0x0;
+ }
+
+ return 0xC0000000 | NT_STATUS_NONE_MAPPED;
+}
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