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r8744: Split 'net samdump' out into a separate file

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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 2eadcf4669)
This commit is contained in:
Andrew Bartlett 2005-07-25 02:23:41 +00:00 committed by Gerald (Jerry) Carter
parent 52371753bd
commit 82f96542fa
5 changed files with 291 additions and 264 deletions
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3
source4/include/structs.h
View File

@ -178,6 +178,8 @@ struct libnet_ListShares;
struct libnet_AddShare;
struct libnet_DelShare;
struct libnet_Lookup;
struct libnet_SamDump;
struct libnet_SamSync;
struct net_functable;
struct net_context;
@ -263,7 +265,6 @@ struct wrepl_pull_names;
struct arcfour_state;
union libnet_SamDump;
struct websrv_context;
struct EspRequest;
struct PAC_LOGON_INFO;

1
source4/libnet/config.mk
View File

@ -9,6 +9,7 @@ ADD_OBJ_FILES = \
libnet/libnet_rpc.o \
libnet/libnet_join.o \
libnet/libnet_vampire.o \
libnet/libnet_samdump.o \
libnet/libnet_user.o \
libnet/libnet_share.o \
libnet/libnet_lookup.o \

232
source4/libnet/libnet_samdump.c Normal file
View File

@ -0,0 +1,232 @@
/*
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
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "libnet/libnet.h"
#include "librpc/gen_ndr/ndr_netlogon.h"
#include "librpc/gen_ndr/ndr_samr.h"
#include "dlinklist.h"
struct samdump_secret {
struct samdump_secret *prev, *next;
DATA_BLOB secret;
char *name;
NTTIME mtime;
};
struct samdump_trusted_domain {
struct samdump_trusted_domain *prev, *next;
struct dom_sid *sid;
char *name;
};
struct samdump_state {
struct samdump_secret *secrets;
struct samdump_trusted_domain *trusted_domains;
};
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 samdump_secret *new = talloc(samdump_state, struct samdump_secret);
new->name = talloc_steal(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 samdump_trusted_domain *new = talloc(samdump_state, struct samdump_trusted_domain);
new->name = talloc_steal(new, trusted_domain->domain_name.string);
new->sid = talloc_steal(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;
}
static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
{
NTSTATUS nt_status;
struct libnet_SamSync r2;
struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
struct samdump_trusted_domain *t;
struct samdump_secret *s;
if (!samdump_state) {
return NT_STATUS_NO_MEMORY;
}
samdump_state->secrets = NULL;
samdump_state->trusted_domains = NULL;
r2.error_string = NULL;
r2.delta_fn = libnet_samdump_fn;
r2.fn_ctx = samdump_state;
r2.machine_account = NULL; /* TODO: Create a machine account, fill this in, and the delete it */
nt_status = libnet_SamSync_netlogon(ctx, samdump_state, &r2);
r->error_string = r2.error_string;
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(samdump_state);
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->error_string = talloc_asprintf(mem_ctx,
"Could not convert secret for domain %s to a string\n",
t->name);
talloc_free(samdump_state);
return NT_STATUS_INVALID_PARAMETER;
}
printf("%s\t%s\t%s\n",
t->name, dom_sid_string(mem_ctx, t->sid),
secret_string);
}
}
}
talloc_free(samdump_state);
return nt_status;
}
static NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
{
NTSTATUS nt_status;
struct libnet_SamDump r2;
r2.level = LIBNET_SAMDUMP_NETLOGON;
r2.error_string = NULL;
nt_status = libnet_SamDump(ctx, mem_ctx, &r2);
r->error_string = r2.error_string;
return nt_status;
}
NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
{
switch (r->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;
}

258
source4/libnet/libnet_vampire.c
View File

@ -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);
samsync_ctx = talloc_named(mem_ctx, 0, "SamSync top context");
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->netlogon.error_string = talloc_strdup(mem_ctx, "Could not obtain machine account password - are we joined to the domain?");
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;
}

27
source4/libnet/libnet_vampire.h
View File

@ -20,20 +20,8 @@
#include "librpc/gen_ndr/ndr_netlogon.h"
/* struct and enum for doing a remote domain join */
enum libnet_SamSync_level {
LIBNET_SAMSYNC_GENERIC,
LIBNET_SAMSYNC_NETLOGON,
};
union libnet_SamSync {
struct {
enum libnet_SamSync_level level;
char *error_string;
} generic;
struct {
enum libnet_SamSync_level level;
/* struct and enum for doing a remote domain vampire dump */
struct libnet_SamSync {
NTSTATUS (*delta_fn)(TALLOC_CTX *mem_ctx,
void *private,
struct creds_CredentialState *creds,
@ -42,7 +30,7 @@ union libnet_SamSync {
char **error_string);
void *fn_ctx;
char *error_string;
} netlogon;
struct cli_credentials *machine_account;
};
enum libnet_SamDump_level {
@ -50,15 +38,8 @@ enum libnet_SamDump_level {
LIBNET_SAMDUMP_NETLOGON,
};
union libnet_SamDump {
struct {
struct libnet_SamDump {
enum libnet_SamDump_level level;
char *error_string;
} generic;
struct {
enum libnet_SamDump_level level;
char *error_string;
} netlogon;
};