r6928: Add support for printing trusted domain names, sids and passwords in
authorAndrew Bartlett <abartlet@samba.org>
Sat, 21 May 2005 06:31:02 +0000 (06:31 +0000)
committerGerald (Jerry) Carter <jerry@samba.org>
Wed, 10 Oct 2007 18:16:57 +0000 (13:16 -0500)
the Samba4 'net samdump'.

Andrew Bartlett

source/libnet/libnet_vampire.c

index fb6098ed17586f47378edad0c5023583651941f4..69bacb7951203821df7e2ab2a6d386fb81d61147 100644 (file)
@@ -1,6 +1,8 @@
 /* 
    Unix SMB/CIFS implementation.
    
+   Extract the user/system database from a remote SamSync server
+
    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
    
    This program is free software; you can redistribute it and/or modify
 #include "libnet/libnet.h"
 #include "librpc/gen_ndr/ndr_netlogon.h"
 #include "librpc/gen_ndr/ndr_samr.h"
+#include "dlinklist.h"
 
-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;
-       const char *username = user->account_name.string;
-       char *hex_lm_password;
-       char *hex_nt_password;
+struct samsync_secret {
+       struct samsync_secret *prev, *next;
+       DATA_BLOB secret;
+       char *name;
+       NTTIME mtime;
+};
 
-       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);
+struct samsync_trusted_domain {
+       struct samsync_trusted_domain *prev, *next;
+        struct dom_sid *sid;
+       char *name;
+};
 
-       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;
-}
+struct samdump_state {
+       struct samsync_secret *secrets;
+       struct samsync_trusted_domain *trusted_domains;
+};
 
-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.  
@@ -135,6 +105,27 @@ static NTSTATUS fix_user(TALLOC_CTX *mem_ctx,
        return NT_STATUS_OK;
 }
 
+/**
+ * Decrypt and extract the secrets
+ * 
+ * The writes decrypted secrets back into the structure
+ */
+static NTSTATUS fix_secret(TALLOC_CTX *mem_ctx,
+                          struct creds_CredentialState *creds,
+                          enum netr_SamDatabaseID database,
+                          struct netr_DELTA_ENUM *delta,
+                          char **error_string) 
+{
+       struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
+       creds_arcfour_crypt(creds, secret->current_cipher.cipher_data, 
+                           secret->current_cipher.maxlen); 
+
+       creds_arcfour_crypt(creds, secret->old_cipher.cipher_data, 
+                           secret->old_cipher.maxlen); 
+
+       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
@@ -158,6 +149,15 @@ static NTSTATUS fix_delta(TALLOC_CTX *mem_ctx,
                                     error_string);
                break;
        }
+       case NETR_DELTA_SECRET:
+       {
+               nt_status = fix_secret(mem_ctx, 
+                                      creds,
+                                      database,
+                                      delta,
+                                      error_string);
+               break;
+       }
        }
        return nt_status;
 }
@@ -215,7 +215,7 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *
 
        /* We like schannel */
        b->flags &= ~DCERPC_AUTH_OPTIONS;
-       b->flags |= DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_128;
+       b->flags |= DCERPC_SCHANNEL | DCERPC_SEAL /* | DCERPC_SCHANNEL_128 */;
 
        /* Setup schannel */
        nt_status = dcerpc_pipe_connect_b(mem_ctx, &p, b, 
@@ -296,19 +296,156 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *
        return nt_status;
 }
 
+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;
+       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 vampire_samdump_handle_secret(TALLOC_CTX *mem_ctx,
+                                             struct samdump_state *samdump_state,
+                                             struct creds_CredentialState *creds,
+                                             struct netr_DELTA_ENUM *delta) 
+{
+       struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
+       const char *name = delta->delta_id_union.name;
+       struct samsync_secret *new = talloc(samdump_state, struct samsync_secret);
+
+       new->name = talloc_reference(new, name);
+       new->secret = data_blob_talloc(new, secret->current_cipher.cipher_data, secret->current_cipher.maxlen);
+       new->mtime = secret->current_cipher_set_time;
+
+       DLIST_ADD(samdump_state->secrets, new);
+
+       return NT_STATUS_OK;
+}
+
+static NTSTATUS vampire_samdump_handle_trusted_domain(TALLOC_CTX *mem_ctx,
+                                             struct samdump_state *samdump_state,
+                                             struct creds_CredentialState *creds,
+                                             struct netr_DELTA_ENUM *delta) 
+{
+       struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain;
+       struct dom_sid *dom_sid = delta->delta_id_union.sid;
+
+       struct samsync_trusted_domain *new = talloc(samdump_state, struct samsync_trusted_domain);
+
+       new->name = talloc_reference(new, trusted_domain->domain_name.string);
+       new->sid = talloc_reference(new, dom_sid);
+
+       DLIST_ADD(samdump_state->trusted_domains, new);
+
+       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;
+       struct samdump_state *samdump_state = private;
+
+       *error_string = NULL;
+       switch (delta->delta_type) {
+       case NETR_DELTA_USER:
+       {
+               /* not interested in builtin users */
+               if (database == SAM_DATABASE_DOMAIN) {
+                       nt_status = vampire_samdump_handle_user(mem_ctx, 
+                                                               creds,
+                                                               delta);
+                       break;
+               }
+       }
+       case NETR_DELTA_SECRET:
+       {
+               nt_status = vampire_samdump_handle_secret(mem_ctx,
+                                                         samdump_state,
+                                                         creds,
+                                                         delta);
+               break;
+       }
+       case NETR_DELTA_TRUSTED_DOMAIN:
+       {
+               nt_status = vampire_samdump_handle_trusted_domain(mem_ctx,
+                                                                 samdump_state,
+                                                                 creds,
+                                                                 delta);
+               break;
+       }
+       }
+       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;
+       struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
+
+       struct samsync_trusted_domain *t;
+       struct samsync_secret *s;
+
+       if (!samdump_state) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       samdump_state->secrets = NULL;
+       samdump_state->trusted_domains = NULL;
 
        r2.netlogon.level = LIBNET_SAMDUMP_NETLOGON;
        r2.netlogon.error_string = NULL;
        r2.netlogon.delta_fn = libnet_samdump_fn;
-       r2.netlogon.fn_ctx = NULL;
+       r2.netlogon.fn_ctx = samdump_state;
        nt_status = libnet_SamSync_netlogon(ctx, mem_ctx, &r2);
        r->generic.error_string = r2.netlogon.error_string;
 
-       
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       printf("Trusted domains, sids and secrets:\n");
+       for (t=samdump_state->trusted_domains; t; t=t->next) {
+               char *secret_name = talloc_asprintf(mem_ctx, "G$$%s", t->name);
+               for (s=samdump_state->secrets; s; s=s->next) {
+                       if (StrCaseCmp(s->name, secret_name) == 0) {
+                               char *secret_string;
+                               if (convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX, 
+                                                         s->secret.data, s->secret.length, 
+                                                         (void **)&secret_string) == -1) {
+                                       r->generic.error_string = talloc_asprintf(mem_ctx, 
+                                                                                 "Could not convert secret for domain %s to a string\n",
+                                                                                 t->name);
+                                       return NT_STATUS_INVALID_PARAMETER;
+                               }
+                               printf("%s\t%s\t%s\n", 
+                                      t->name, dom_sid_string(mem_ctx, t->sid), 
+                                      secret_string);
+                       }
+               }
+       }
        return nt_status;
 }
 
@@ -318,7 +455,6 @@ NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 {
        NTSTATUS nt_status;
        union libnet_SamDump r2;
-
        r2.generic.level = LIBNET_SAMDUMP_NETLOGON;
        r2.generic.error_string = NULL;
        nt_status = libnet_SamDump(ctx, mem_ctx, &r2);