From 82f96542fa457b57bd7e7a4db69b950f6f025cca Mon Sep 17 00:00:00 2001 From: Andrew Bartlett Date: Mon, 25 Jul 2005 02:23:41 +0000 Subject: r8744: Split 'net samdump' out into a separate file Work on the talloc memory tree, as I think talloc_reference and other things were biting me. Crush unions in the name of code reform. ;-) Andrew Bartlett (This used to be commit 2eadcf46699f1cc7adb2066e17096f70c7b73998) --- source4/libnet/libnet_vampire.c | 272 +++++++--------------------------------- 1 file changed, 42 insertions(+), 230 deletions(-) (limited to 'source4/libnet/libnet_vampire.c') diff --git a/source4/libnet/libnet_vampire.c b/source4/libnet/libnet_vampire.c index 2e93a45966..f4be5013f1 100644 --- a/source4/libnet/libnet_vampire.c +++ b/source4/libnet/libnet_vampire.c @@ -25,25 +25,6 @@ #include "libnet/libnet.h" #include "librpc/gen_ndr/ndr_netlogon.h" #include "librpc/gen_ndr/ndr_samr.h" -#include "dlinklist.h" - -struct samsync_secret { - struct samsync_secret *prev, *next; - DATA_BLOB secret; - char *name; - NTTIME mtime; -}; - -struct samsync_trusted_domain { - struct samsync_trusted_domain *prev, *next; - struct dom_sid *sid; - char *name; -}; - -struct samdump_state { - struct samsync_secret *secrets; - struct samsync_trusted_domain *trusted_domains; -}; /** @@ -164,10 +145,10 @@ static NTSTATUS fix_delta(TALLOC_CTX *mem_ctx, return nt_status; } -static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamSync *r) +NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamSync *r) { NTSTATUS nt_status, dbsync_nt_status; - TALLOC_CTX *loop_ctx, *delta_ctx; + TALLOC_CTX *samsync_ctx, *loop_ctx, *delta_ctx; struct creds_CredentialState *creds; struct netr_DatabaseSync dbsync; struct cli_credentials *machine_account; @@ -184,34 +165,42 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * binding = bindings[0]; } - machine_account = cli_credentials_init(mem_ctx); - if (!machine_account) { - return NT_STATUS_NO_MEMORY; - } + samsync_ctx = talloc_named(mem_ctx, 0, "SamSync top context"); - cli_credentials_set_conf(machine_account); - nt_status = cli_credentials_set_machine_account(machine_account); - - if (!NT_STATUS_IS_OK(nt_status)) { - r->netlogon.error_string = talloc_strdup(mem_ctx, "Could not obtain machine account password - are we joined to the domain?"); - return nt_status; + if (!r->machine_account) { + machine_account = cli_credentials_init(samsync_ctx); + if (!machine_account) { + talloc_free(samsync_ctx); + return NT_STATUS_NO_MEMORY; + } + cli_credentials_set_conf(machine_account); + nt_status = cli_credentials_set_machine_account(machine_account); + if (!NT_STATUS_IS_OK(nt_status)) { + r->error_string = talloc_strdup(mem_ctx, "Could not obtain machine account password - are we joined to the domain?"); + talloc_free(samsync_ctx); + return nt_status; + } + } else { + machine_account = r->machine_account; } - + if (cli_credentials_get_secure_channel_type(machine_account) != SEC_CHAN_BDC) { - r->netlogon.error_string + r->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_domain(machine_account), cli_credentials_get_secure_channel_type(machine_account)); + talloc_free(samsync_ctx); return NT_STATUS_CANT_ACCESS_DOMAIN_INFO; } /* Connect to DC (take a binding string for now) */ - nt_status = dcerpc_parse_binding(mem_ctx, binding, &b); + nt_status = dcerpc_parse_binding(samsync_ctx, binding, &b); if (!NT_STATUS_IS_OK(nt_status)) { - r->netlogon.error_string = talloc_asprintf(mem_ctx, "Bad binding string %s\n", binding); + r->error_string = talloc_asprintf(mem_ctx, "Bad binding string %s\n", binding); + talloc_free(samsync_ctx); return NT_STATUS_INVALID_PARAMETER; } @@ -220,24 +209,26 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * b->flags |= DCERPC_SCHANNEL | DCERPC_SEAL /* | DCERPC_SCHANNEL_128 */; /* Setup schannel */ - nt_status = dcerpc_pipe_connect_b(mem_ctx, &p, b, + nt_status = dcerpc_pipe_connect_b(samsync_ctx, &p, b, DCERPC_NETLOGON_UUID, DCERPC_NETLOGON_VERSION, machine_account, ctx->event_ctx); if (!NT_STATUS_IS_OK(nt_status)) { + talloc_free(samsync_ctx); return nt_status; } /* get NETLOGON credentails */ - nt_status = dcerpc_schannel_creds(p->conn->security_state.generic_state, mem_ctx, &creds); + nt_status = dcerpc_schannel_creds(p->conn->security_state.generic_state, samsync_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"); + r->error_string = talloc_strdup(mem_ctx, "Could not obtain NETLOGON credentials from DCERPC/GENSEC layer"); + talloc_free(samsync_ctx); return nt_status; } - dbsync.in.logon_server = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p)); + dbsync.in.logon_server = talloc_asprintf(samsync_ctx, "\\\\%s", dcerpc_server_name(p)); dbsync.in.computername = cli_credentials_get_workstation(machine_account); dbsync.in.preferredmaximumlength = (uint32_t)-1; ZERO_STRUCT(dbsync.in.return_authenticator); @@ -248,18 +239,20 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * do { int d; - loop_ctx = talloc_named(mem_ctx, 0, "DatabaseSync loop context"); + loop_ctx = talloc_named(samsync_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)); + r->error_string = talloc_asprintf(samsync_ctx, "DatabaseSync failed - %s", nt_errstr(nt_status)); + talloc_free(samsync_ctx); return nt_status; } if (!creds_client_check(creds, &dbsync.out.return_authenticator.cred)) { - r->netlogon.error_string = talloc_strdup(mem_ctx, "Credential chaining failed"); + r->error_string = talloc_strdup(samsync_ctx, "Credential chaining failed"); + talloc_free(samsync_ctx); return NT_STATUS_ACCESS_DENIED; } @@ -274,19 +267,19 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * &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); + r->error_string = talloc_steal(samsync_ctx, error_string); + talloc_free(samsync_ctx); return nt_status; } - nt_status = r->netlogon.delta_fn(delta_ctx, - r->netlogon.fn_ctx, + nt_status = r->delta_fn(delta_ctx, + r->fn_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); + r->error_string = talloc_steal(samsync_ctx, error_string); + talloc_free(samsync_ctx); return nt_status; } talloc_free(delta_ctx); @@ -295,188 +288,7 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * } while (NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES)); nt_status = dbsync_nt_status; } + talloc_free(samsync_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; - } - default: - /* Can't dump them all right now */ - 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 = 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; -} - - - -NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r) -{ - 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); - r->generic.error_string = r2.netlogon.error_string; - - - return nt_status; -} - -NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r) -{ - switch (r->generic.level) { - case LIBNET_SAMDUMP_GENERIC: - return libnet_SamDump_generic(ctx, mem_ctx, r); - case LIBNET_SAMDUMP_NETLOGON: - return libnet_SamDump_netlogon(ctx, mem_ctx, r); - } - - return NT_STATUS_INVALID_LEVEL; -} -- cgit