r6927: Make it easier to program with the SamSync callback interface, perform
[samba.git] / source / libnet / libnet_vampire.c
index daf7bdfaed8a041b57bfe6130cd536b1469afed5..fb6098ed17586f47378edad0c5023583651941f4 100644 (file)
 #include "librpc/gen_ndr/ndr_netlogon.h"
 #include "librpc/gen_ndr/ndr_samr.h"
 
-static BOOL vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
-                                       struct creds_CredentialState *creds,
-                                       struct netr_DELTA_ENUM *delta) 
+static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
+                                           struct creds_CredentialState *creds,
+                                           struct netr_DELTA_ENUM *delta) 
 {
        uint32_t rid = delta->delta_id_union.rid;
        struct netr_DELTA_USER *user = delta->delta_union.user;
-       struct samr_Password lm_hash;
-       struct samr_Password nt_hash;
-       struct samr_Password *lm_hash_p = NULL;
-       struct samr_Password *nt_hash_p = NULL;
        const char *username = user->account_name.string;
        char *hex_lm_password;
        char *hex_nt_password;
 
+       hex_lm_password = smbpasswd_sethexpwd(mem_ctx, 
+                                             user->lm_password_present ? &user->lmpassword : NULL, 
+                                             user->acct_flags);
+       hex_nt_password = smbpasswd_sethexpwd(mem_ctx, 
+                                             user->nt_password_present ? &user->ntpassword : NULL, 
+                                             user->acct_flags);
+
+       printf("%s:%d:%s:%s:%s:LCT-%08X\n", username,
+              rid, hex_lm_password, hex_nt_password,
+              smbpasswd_encode_acb_info(mem_ctx, user->acct_flags),
+              (unsigned int)nt_time_to_unix(user->last_password_change));
+
+       return NT_STATUS_OK;
+}
+
+static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx,                 
+                                 void *private,                        
+                                 struct creds_CredentialState *creds,
+                                 enum netr_SamDatabaseID database,
+                                 struct netr_DELTA_ENUM *delta,
+                                 char **error_string)
+{
+       NTSTATUS nt_status = NT_STATUS_OK;
+       *error_string = NULL;
+       switch (database) {
+       case SAM_DATABASE_DOMAIN: 
+       {
+               switch (delta->delta_type) {
+               case NETR_DELTA_USER:
+               {
+                       nt_status = vampire_samdump_handle_user(mem_ctx, 
+                                                               creds,
+                                                               delta);
+                       break;
+               }
+               }
+               break;
+       }
+       }
+       return nt_status;
+}
+
+/**
+ * Decrypt and extract the user's passwords.  
+ * 
+ * The writes decrypted (no longer 'RID encrypted' or arcfour encrypted) passwords back into the structure
+ */
+static NTSTATUS fix_user(TALLOC_CTX *mem_ctx,
+                        struct creds_CredentialState *creds,
+                        enum netr_SamDatabaseID database,
+                        struct netr_DELTA_ENUM *delta,
+                        char **error_string) 
+{
+
+       uint32_t rid = delta->delta_id_union.rid;
+       struct netr_DELTA_USER *user = delta->delta_union.user;
+       struct samr_Password lm_hash;
+       struct samr_Password nt_hash;
+       const char *username = user->account_name.string;
        NTSTATUS nt_status;
 
        if (user->lm_password_present) {
                sam_rid_crypt(rid, user->lmpassword.hash, lm_hash.hash, 0);
-               lm_hash_p = &lm_hash;
+               user->lmpassword = lm_hash;
        }
+
        if (user->nt_password_present) {
                sam_rid_crypt(rid, user->ntpassword.hash, nt_hash.hash, 0);
-               nt_hash_p = &nt_hash;
+               user->ntpassword = nt_hash;
        }
 
        if (user->user_private_info.SensitiveData) {
@@ -55,45 +111,68 @@ static BOOL vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
                data.data = user->user_private_info.SensitiveData;
                data.length = user->user_private_info.DataLength;
                creds_arcfour_crypt(creds, data.data, data.length);
+               user->user_private_info.SensitiveData = data.data;
+               user->user_private_info.DataLength = data.length;
+
                nt_status = ndr_pull_struct_blob(&data, mem_ctx, &keys, (ndr_pull_flags_fn_t)ndr_pull_netr_USER_KEYS);
                if (NT_STATUS_IS_OK(nt_status)) {
                        if (keys.keys.keys2.lmpassword.length == 16) {
                                sam_rid_crypt(rid, keys.keys.keys2.lmpassword.pwd.hash, lm_hash.hash, 0);
-                               lm_hash_p = &lm_hash;
+                               user->lmpassword = lm_hash;
+                               user->lm_password_present = True;
                        }
                        if (keys.keys.keys2.ntpassword.length == 16) {
                                sam_rid_crypt(rid, keys.keys.keys2.ntpassword.pwd.hash, nt_hash.hash, 0);
-                               nt_hash_p = &nt_hash;
+                               user->ntpassword = nt_hash;
+                               user->nt_password_present = True;
                        }
                } else {
-                       printf("Failed to parse Sensitive Data for %s:\n", username);
+                       *error_string = talloc_asprintf(mem_ctx, "Failed to parse Sensitive Data for %s:\n", username);
                        dump_data(10, data.data, data.length);
-                       return False;
+                       return nt_status;
                }
        }
-
-       hex_lm_password = smbpasswd_sethexpwd(mem_ctx, lm_hash_p, user->acct_flags);
-       hex_nt_password = smbpasswd_sethexpwd(mem_ctx, nt_hash_p, user->acct_flags);
-
-       printf("%s:%d:%s:%s:%s:LCT-%08X\n", username,
-              rid, hex_lm_password, hex_nt_password,
-              smbpasswd_encode_acb_info(mem_ctx, user->acct_flags),
-              (unsigned int)nt_time_to_unix(user->last_password_change));
-
-       return True;
+       return NT_STATUS_OK;
 }
 
+/**
+ * Fix up the delta, dealing with encryption issues so that the final
+ * callback need only do the printing or application logic
+ */
 
+static NTSTATUS fix_delta(TALLOC_CTX *mem_ctx,                 
+                         struct creds_CredentialState *creds,
+                         enum netr_SamDatabaseID database,
+                         struct netr_DELTA_ENUM *delta,
+                         char **error_string)
+{
+       NTSTATUS nt_status = NT_STATUS_OK;
+       *error_string = NULL;
+       switch (delta->delta_type) {
+       case NETR_DELTA_USER:
+       {
+               nt_status = fix_user(mem_ctx, 
+                                    creds,
+                                    database,
+                                    delta,
+                                    error_string);
+               break;
+       }
+       }
+       return nt_status;
+}
 
-static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r)
+static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamSync *r)
 {
-       NTSTATUS nt_status;
+       NTSTATUS nt_status, dbsync_nt_status;
        TALLOC_CTX *loop_ctx, *delta_ctx;
        struct creds_CredentialState *creds;
        struct netr_DatabaseSync dbsync;
        struct cli_credentials *machine_account;
        struct dcerpc_binding *b;
        struct dcerpc_pipe *p;
+       const enum netr_SamDatabaseID database_ids[] = {SAM_DATABASE_DOMAIN, SAM_DATABASE_BUILTIN, SAM_DATABASE_PRIVS}; 
+       int i;
 
        /* TODO: This is bogus */
        const char **bindings = lp_passwordserver();
@@ -120,8 +199,9 @@ static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *
                r->netlogon.error_string
                        = talloc_asprintf(mem_ctx, 
                                          "Our join to domain %s is not as a BDC (%d), please rejoin as a BDC",
-                                         cli_credentials_get_secure_channel_type(machine_account),
-                                         cli_credentials_get_domain(machine_account));
+                                         
+                                         cli_credentials_get_domain(machine_account),
+                                         cli_credentials_get_secure_channel_type(machine_account));
                return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
        }
 
@@ -147,10 +227,11 @@ static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *
                return nt_status;
        }
 
-       /* call domain logon */
+       /* get NETLOGON credentails */
 
        nt_status = dcerpc_schannel_creds(p->conn->security_state.generic_state, mem_ctx, &creds);
        if (!NT_STATUS_IS_OK(nt_status)) {
+               r->netlogon.error_string = talloc_strdup(mem_ctx, "Could not obtain NETLOGON credentials from DCERPC/GENSEC layer");
                return nt_status;
        }
 
@@ -159,45 +240,80 @@ static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *
        dbsync.in.preferredmaximumlength = (uint32_t)-1;
        ZERO_STRUCT(dbsync.in.return_authenticator);
 
-       dbsync.in.sync_context = 0;
-       dbsync.in.database_id = SAM_DATABASE_DOMAIN;
-
-       do {
-               int d;
-               loop_ctx = talloc_named(mem_ctx, 0, "DatabaseSync loop context");
-               creds_client_authenticator(creds, &dbsync.in.credential);
-               
-               nt_status = dcerpc_netr_DatabaseSync(p, loop_ctx, &dbsync);
-               if (!NT_STATUS_IS_OK(nt_status) &&
-                   !NT_STATUS_EQUAL(nt_status, STATUS_MORE_ENTRIES)) {
-                       printf("DatabaseSync - %s\n", nt_errstr(nt_status));
-                       return nt_status;
-               }
+       for (i=0;i< ARRAY_SIZE(database_ids); i++) { 
+               dbsync.in.sync_context = 0;
+               dbsync.in.database_id = database_ids[i]; 
                
-               if (!creds_client_check(creds, &dbsync.out.return_authenticator.cred)) {
-                       printf("Credential chaining failed\n");
-               }
-               
-               dbsync.in.sync_context = dbsync.out.sync_context;
-               
-               for (d=0; d < dbsync.out.delta_enum_array->num_deltas; d++) {
-                       delta_ctx = talloc_named(loop_ctx, 0, "DatabaseSync delta context");
-                       switch (dbsync.out.delta_enum_array->delta_enum[d].delta_type) {
-                       case NETR_DELTA_USER:
-                               if (!vampire_samdump_handle_user(delta_ctx, 
+               do {
+                       int d;
+                       loop_ctx = talloc_named(mem_ctx, 0, "DatabaseSync loop context");
+                       creds_client_authenticator(creds, &dbsync.in.credential);
+                       
+                       dbsync_nt_status = dcerpc_netr_DatabaseSync(p, loop_ctx, &dbsync);
+                       if (!NT_STATUS_IS_OK(dbsync_nt_status) &&
+                           !NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES)) {
+                               r->netlogon.error_string = talloc_asprintf(mem_ctx, "DatabaseSync failed - %s", nt_errstr(nt_status));
+                               return nt_status;
+                       }
+                       
+                       if (!creds_client_check(creds, &dbsync.out.return_authenticator.cred)) {
+                               r->netlogon.error_string = talloc_strdup(mem_ctx, "Credential chaining failed");
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+                       
+                       dbsync.in.sync_context = dbsync.out.sync_context;
+                       
+                       for (d=0; d < dbsync.out.delta_enum_array->num_deltas; d++) {
+                               char *error_string = NULL;
+                               delta_ctx = talloc_named(loop_ctx, 0, "DatabaseSync delta context");
+                               nt_status = fix_delta(delta_ctx, 
+                                                     creds, 
+                                                     dbsync.in.database_id,
+                                                     &dbsync.out.delta_enum_array->delta_enum[d], 
+                                                     &error_string);
+                               if (!NT_STATUS_IS_OK(nt_status)) {
+                                       r->netlogon.error_string = talloc_steal(mem_ctx, error_string);
+                                       talloc_free(delta_ctx);
+                                       return nt_status;
+                               }
+                               nt_status = r->netlogon.delta_fn(delta_ctx, 
+                                                                r->netlogon.fn_ctx,
                                                                 creds,
-                                                                &dbsync.out.delta_enum_array->delta_enum[d])) {
-                                       return NT_STATUS_INVALID_PARAMETER;
+                                                                dbsync.in.database_id,
+                                                                &dbsync.out.delta_enum_array->delta_enum[d], 
+                                                                &error_string);
+                               if (!NT_STATUS_IS_OK(nt_status)) {
+                                       r->netlogon.error_string = talloc_steal(mem_ctx, error_string);
+                                       talloc_free(delta_ctx);
+                                       return nt_status;
                                }
-                               break;
+                               talloc_free(delta_ctx);
                        }
-                       talloc_free(delta_ctx);
-               }
-               talloc_free(loop_ctx);
-       } while (NT_STATUS_EQUAL(nt_status, STATUS_MORE_ENTRIES));
-       return NT_STATUS_OK;
+                       talloc_free(loop_ctx);
+               } while (NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES));
+               nt_status = dbsync_nt_status;
+       }
+       return nt_status;
 }
 
+NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r)
+{
+       NTSTATUS nt_status;
+       union libnet_SamSync r2;
+
+       r2.netlogon.level = LIBNET_SAMDUMP_NETLOGON;
+       r2.netlogon.error_string = NULL;
+       r2.netlogon.delta_fn = libnet_samdump_fn;
+       r2.netlogon.fn_ctx = NULL;
+       nt_status = libnet_SamSync_netlogon(ctx, mem_ctx, &r2);
+       r->generic.error_string = r2.netlogon.error_string;
+
+       
+       return nt_status;
+}
+
+
+
 NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r)
 {
        NTSTATUS nt_status;