#include "includes.h"
#include "system/filesys.h"
#include <tevent.h>
+#include "lib/util/server_id.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "dbwrap/dbwrap.h"
#include "librpc/gen_ndr/ndr_smbXsrv.h"
#include "serverid.h"
#include "lib/util/tevent_ntstatus.h"
+#include "lib/global_contexts.h"
struct smbXsrv_session_table {
struct {
} global;
};
-static NTSTATUS smb2srv_session_lookup_raw(struct smbXsrv_session_table *table,
- uint64_t session_id, NTTIME now,
- struct smbXsrv_session **session);
-
static struct db_context *smbXsrv_session_global_db_ctx = NULL;
-NTSTATUS smbXsrv_session_global_init(void)
+NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx)
{
char *global_path = NULL;
+ struct db_context *backend = NULL;
struct db_context *db_ctx = NULL;
if (smbXsrv_session_global_db_ctx != NULL) {
/*
* This contains secret information like session keys!
*/
- global_path = lock_path("smbXsrv_session_global.tdb");
+ global_path = lock_path(talloc_tos(), "smbXsrv_session_global.tdb");
if (global_path == NULL) {
return NT_STATUS_NO_MEMORY;
}
- db_ctx = db_open(NULL, global_path,
- 0, /* hash_size */
- TDB_DEFAULT |
- TDB_CLEAR_IF_FIRST |
- TDB_INCOMPATIBLE_HASH,
- O_RDWR | O_CREAT, 0600,
- DBWRAP_LOCK_ORDER_1,
- DBWRAP_FLAG_NONE);
+ backend = db_open(NULL, global_path,
+ 0, /* hash_size */
+ TDB_DEFAULT |
+ TDB_CLEAR_IF_FIRST |
+ TDB_INCOMPATIBLE_HASH,
+ O_RDWR | O_CREAT, 0600,
+ DBWRAP_LOCK_ORDER_1,
+ DBWRAP_FLAG_NONE);
TALLOC_FREE(global_path);
- if (db_ctx == NULL) {
+ if (backend == NULL) {
NTSTATUS status;
status = map_nt_error_from_unix_common(errno);
return status;
}
+ db_ctx = db_open_watched(NULL, &backend, global_messaging_context());
+ if (db_ctx == NULL) {
+ TALLOC_FREE(backend);
+ return NT_STATUS_NO_MEMORY;
+ }
+
smbXsrv_session_global_db_ctx = db_ctx;
return NT_STATUS_OK;
return NT_STATUS_OK;
}
+static struct db_record *smbXsrv_session_global_fetch_locked(
+ struct db_context *db,
+ uint32_t id,
+ TALLOC_CTX *mem_ctx)
+{
+ TDB_DATA key;
+ uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
+ struct db_record *rec = NULL;
+
+ key = smbXsrv_session_global_id_to_key(id, key_buf);
+
+ rec = dbwrap_fetch_locked(db, mem_ctx, key);
+
+ if (rec == NULL) {
+ DBG_DEBUG("Failed to lock global id 0x%08x, key '%s'\n", id,
+ hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
+ }
+
+ return rec;
+}
+
+static struct db_record *smbXsrv_session_local_fetch_locked(
+ struct db_context *db,
+ uint32_t id,
+ TALLOC_CTX *mem_ctx)
+{
+ TDB_DATA key;
+ uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
+ struct db_record *rec = NULL;
+
+ key = smbXsrv_session_local_id_to_key(id, key_buf);
+
+ rec = dbwrap_fetch_locked(db, mem_ctx, key);
+
+ if (rec == NULL) {
+ DBG_DEBUG("Failed to lock local id 0x%08x, key '%s'\n", id,
+ hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
+ }
+
+ return rec;
+}
+
static void smbXsrv_session_close_loop(struct tevent_req *subreq);
static NTSTATUS smbXsrv_session_table_init(struct smbXsrv_connection *conn,
table->local.highest_id = highest_id;
table->local.max_sessions = max_sessions;
- status = smbXsrv_session_global_init();
+ status = smbXsrv_session_global_init(client->msg_ctx);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(table);
return status;
table->global.db_ctx = smbXsrv_session_global_db_ctx;
- dbwrap_watch_db(table->global.db_ctx, client->msg_ctx);
-
- subreq = messaging_read_send(table, client->ev_ctx, client->msg_ctx,
+ subreq = messaging_read_send(table,
+ client->raw_ev_ctx,
+ client->msg_ctx,
MSG_SMBXSRV_SESSION_CLOSE);
if (subreq == NULL) {
TALLOC_FREE(table);
goto next;
}
- status = smb2srv_session_lookup_raw(client->session_table,
- close_info0->old_session_wire_id,
- now, &session);
+ status = smb2srv_session_lookup_client(client,
+ close_info0->old_session_wire_id,
+ now, &session);
if (NT_STATUS_EQUAL(status, NT_STATUS_USER_SESSION_DELETED)) {
DEBUG(4,("smbXsrv_session_close_loop: "
"old_session_wire_id %llu not found\n",
goto next;
}
- subreq = smb2srv_session_shutdown_send(session, client->ev_ctx,
+ subreq = smb2srv_session_shutdown_send(session, client->raw_ev_ctx,
session, NULL);
if (subreq == NULL) {
status = NT_STATUS_NO_MEMORY;
next:
TALLOC_FREE(rec);
- subreq = messaging_read_send(table, client->ev_ctx, client->msg_ctx,
+ subreq = messaging_read_send(table,
+ client->raw_ev_ctx,
+ client->msg_ctx,
MSG_SMBXSRV_SESSION_CLOSE);
if (subreq == NULL) {
const char *r;
for (i = 0; i < (range / 2); i++) {
uint32_t id;
- uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
- TDB_DATA key;
TDB_DATA val;
struct db_record *rec = NULL;
id = highest_id;
}
- key = smbXsrv_session_local_id_to_key(id, key_buf);
-
- rec = dbwrap_fetch_locked(db, mem_ctx, key);
+ rec = smbXsrv_session_local_fetch_locked(db, id, mem_ctx);
if (rec == NULL) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
if (NT_STATUS_IS_OK(state.status)) {
uint32_t id;
- uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
- TDB_DATA key;
TDB_DATA val;
struct db_record *rec = NULL;
id = state.useable_id;
- key = smbXsrv_session_local_id_to_key(id, key_buf);
-
- rec = dbwrap_fetch_locked(db, mem_ctx, key);
+ rec = smbXsrv_session_local_fetch_locked(db, id, mem_ctx);
if (rec == NULL) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
}
static NTSTATUS smbXsrv_session_local_lookup(struct smbXsrv_session_table *table,
+ /* conn: optional */
+ struct smbXsrv_connection *conn,
uint32_t session_local_id,
NTTIME now,
struct smbXsrv_session **_session)
return NT_STATUS_USER_SESSION_DELETED;
}
+ /*
+ * If a connection is specified check if the session is
+ * valid on the channel.
+ */
+ if (conn != NULL) {
+ struct smbXsrv_channel_global0 *c = NULL;
+
+ status = smbXsrv_session_find_channel(state.session, conn, &c);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ }
+
state.session->idle_time = now;
if (!NT_STATUS_IS_OK(state.session->status)) {
bool is_free = false;
bool was_free = false;
uint32_t id;
- uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
- TDB_DATA key;
if (i >= min_tries && last_free != 0) {
id = last_free;
id--;
}
- key = smbXsrv_session_global_id_to_key(id, key_buf);
-
- global->db_rec = dbwrap_fetch_locked(db, mem_ctx, key);
+ global->db_rec = smbXsrv_session_global_fetch_locked(db, id,
+ mem_ctx);
if (global->db_rec == NULL) {
talloc_free(global);
return NT_STATUS_INSUFFICIENT_RESOURCES;
hex_encode_talloc(frame, key.dptr, key.dsize),
nt_errstr(status)));
TALLOC_FREE(frame);
+ *is_free = true;
+ if (was_free) {
+ *was_free = true;
+ }
return;
}
global_blob.version));
NDR_PRINT_DEBUG(smbXsrv_session_globalB, &global_blob);
TALLOC_FREE(frame);
+ *is_free = true;
+ if (was_free) {
+ *was_free = true;
+ }
return;
}
global = global_blob.info.info0;
+#define __BLOB_KEEP_SECRET(__blob) do { \
+ if ((__blob).length != 0) { \
+ talloc_keep_secret((__blob).data); \
+ } \
+} while(0)
+ {
+ uint32_t i;
+ __BLOB_KEEP_SECRET(global->application_key_blob);
+ __BLOB_KEEP_SECRET(global->signing_key_blob);
+ __BLOB_KEEP_SECRET(global->encryption_key_blob);
+ __BLOB_KEEP_SECRET(global->decryption_key_blob);
+ for (i = 0; i < global->num_channels; i++) {
+ __BLOB_KEEP_SECRET(global->channels[i].signing_key_blob);
+ }
+ }
+#undef __BLOB_KEEP_SECRET
+
exists = serverid_exists(&global->channels[0].server_id);
if (!exists) {
struct server_id_buf idbuf;
struct tevent_context *ev;
struct smbXsrv_connection *connection;
struct dom_sid *current_sid;
+ uint64_t previous_session_id;
uint64_t current_session_id;
struct db_record *db_rec;
};
uint64_t global_zeros = previous_session_id & 0xFFFFFFFF00000000LLU;
struct smbXsrv_session_table *table = conn->client->session_table;
struct security_token *current_token = NULL;
- uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
- TDB_DATA key;
req = tevent_req_create(mem_ctx, &state,
struct smb2srv_session_close_previous_state);
}
state->ev = ev;
state->connection = conn;
+ state->previous_session_id = previous_session_id;
state->current_session_id = current_session_id;
if (global_zeros != 0) {
return tevent_req_post(req, ev);
}
- key = smbXsrv_session_global_id_to_key(global_id, key_buf);
-
- state->db_rec = dbwrap_fetch_locked(table->global.db_ctx,
- state, key);
+ state->db_rec = smbXsrv_session_global_fetch_locked(
+ table->global.db_ctx,
+ global_id,
+ state /* TALLOC_CTX */);
if (state->db_rec == NULL) {
tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
return tevent_req_post(req, ev);
return;
}
- subreq = dbwrap_record_watch_send(state, state->ev,
- state->db_rec, conn->msg_ctx);
+ subreq = dbwrap_watched_watch_send(state, state->ev, state->db_rec,
+ (struct server_id){0});
if (tevent_req_nomem(subreq, req)) {
TALLOC_FREE(state->db_rec);
return;
return;
}
- status = messaging_send(conn->msg_ctx,
+ status = messaging_send(conn->client->msg_ctx,
global->channels[0].server_id,
MSG_SMBXSRV_SESSION_CLOSE, &blob);
TALLOC_FREE(state->db_rec);
struct smb2srv_session_close_previous_state *state =
tevent_req_data(req,
struct smb2srv_session_close_previous_state);
+ uint32_t global_id;
NTSTATUS status;
- status = dbwrap_record_watch_recv(subreq, state, &state->db_rec);
+ status = dbwrap_watched_watch_recv(subreq, NULL, NULL);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
+ global_id = state->previous_session_id & UINT32_MAX;
+
+ state->db_rec = smbXsrv_session_global_fetch_locked(
+ state->connection->client->session_table->global.db_ctx,
+ global_id, state /* TALLOC_CTX */);
+
smb2srv_session_close_previous_check(req);
}
return NT_STATUS_OK;
}
-static int smbXsrv_session_destructor(struct smbXsrv_session *session)
+static NTSTATUS smbXsrv_session_clear_and_logoff(struct smbXsrv_session *session)
{
NTSTATUS status;
struct smbXsrv_connection *xconn = NULL;
*/
preq->do_signing = false;
preq->do_encryption = false;
+ preq->preauth = NULL;
}
}
status = smbXsrv_session_logoff(session);
+ return status;
+}
+
+static int smbXsrv_session_destructor(struct smbXsrv_session *session)
+{
+ NTSTATUS status;
+
+ status = smbXsrv_session_clear_and_logoff(session);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("smbXsrv_session_destructor: "
"smbXsrv_session_logoff() failed: %s\n",
void *ptr = NULL;
TDB_DATA val;
struct smbXsrv_session_global0 *global = NULL;
- struct smbXsrv_channel_global0 *channels = NULL;
+ struct smbXsrv_channel_global0 *channel = NULL;
NTSTATUS status;
if (table->local.num_sessions >= table->local.max_sessions) {
session->idle_time = now;
session->status = NT_STATUS_MORE_PROCESSING_REQUIRED;
session->client = conn->client;
+ session->homes_snum = -1;
status = smbXsrv_session_global_allocate(table->global.db_ctx,
session,
if (conn->protocol >= PROTOCOL_SMB2_02) {
uint64_t id = global->session_global_id;
- uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
- TDB_DATA key;
global->connection_dialect = conn->smb2.server.dialect;
session->local_id = global->session_global_id;
- key = smbXsrv_session_local_id_to_key(session->local_id, key_buf);
-
- local_rec = dbwrap_fetch_locked(table->local.db_ctx,
- session, key);
+ local_rec = smbXsrv_session_local_fetch_locked(
+ table->local.db_ctx,
+ session->local_id,
+ session /* TALLOC_CTX */);
if (local_rec == NULL) {
TALLOC_FREE(session);
return NT_STATUS_NO_MEMORY;
global->creation_time = now;
global->expiration_time = GENSEC_EXPIRE_TIME_INFINITY;
- global->num_channels = 1;
- channels = talloc_zero_array(global,
- struct smbXsrv_channel_global0,
- global->num_channels);
- if (channels == NULL) {
- TALLOC_FREE(session);
- return NT_STATUS_NO_MEMORY;
- }
- global->channels = channels;
-
- channels[0].server_id = messaging_server_id(conn->msg_ctx);
- channels[0].local_address = tsocket_address_string(conn->local_address,
- channels);
- if (channels[0].local_address == NULL) {
- TALLOC_FREE(session);
- return NT_STATUS_NO_MEMORY;
- }
- channels[0].remote_address = tsocket_address_string(conn->remote_address,
- channels);
- if (channels[0].remote_address == NULL) {
- TALLOC_FREE(session);
- return NT_STATUS_NO_MEMORY;
- }
- channels[0].remote_name = talloc_strdup(channels, conn->remote_hostname);
- if (channels[0].remote_name == NULL) {
+ status = smbXsrv_session_add_channel(session, conn, now, &channel);
+ if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(session);
- return NT_STATUS_NO_MEMORY;
+ return status;
}
- channels[0].signing_key = data_blob_null;
- channels[0].connection = conn;
ptr = session;
val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
}
if (DEBUGLVL(10)) {
- struct smbXsrv_sessionB session_blob;
-
- ZERO_STRUCT(session_blob);
- session_blob.version = SMBXSRV_VERSION_0;
- session_blob.info.info0 = session;
+ struct smbXsrv_sessionB session_blob = {
+ .version = SMBXSRV_VERSION_0,
+ .info.info0 = session,
+ };
DEBUG(10,("smbXsrv_session_create: global_id (0x%08x) stored\n",
session->global->session_global_id));
return NT_STATUS_OK;
}
+NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
+ struct smbXsrv_connection *conn,
+ NTTIME now,
+ struct smbXsrv_channel_global0 **_c)
+{
+ struct smbXsrv_session_global0 *global = session->global;
+ struct smbXsrv_channel_global0 *c = NULL;
+
+ if (global->num_channels > 31) {
+ /*
+ * Windows allow up to 32 channels
+ */
+ return NT_STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ c = talloc_realloc(global,
+ global->channels,
+ struct smbXsrv_channel_global0,
+ global->num_channels + 1);
+ if (c == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ global->channels = c;
+
+ c = &global->channels[global->num_channels];
+ ZERO_STRUCTP(c);
+
+ c->server_id = messaging_server_id(conn->client->msg_ctx);
+ c->channel_id = conn->channel_id;
+ c->creation_time = now;
+ c->local_address = tsocket_address_string(conn->local_address,
+ global->channels);
+ if (c->local_address == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ c->remote_address = tsocket_address_string(conn->remote_address,
+ global->channels);
+ if (c->remote_address == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ c->remote_name = talloc_strdup(global->channels,
+ conn->remote_hostname);
+ if (c->remote_name == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ c->connection = conn;
+
+ global->num_channels += 1;
+
+ *_c = c;
+ return NT_STATUS_OK;
+}
+
NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session)
{
struct smbXsrv_session_table *table = session->table;
NTSTATUS status;
- uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
- TDB_DATA key;
if (session->global->db_rec != NULL) {
DEBUG(0, ("smbXsrv_session_update(0x%08x): "
return NT_STATUS_INTERNAL_ERROR;
}
- key = smbXsrv_session_global_id_to_key(
+ session->global->db_rec = smbXsrv_session_global_fetch_locked(
+ table->global.db_ctx,
session->global->session_global_id,
- key_buf);
-
- session->global->db_rec = dbwrap_fetch_locked(table->global.db_ctx,
- session->global, key);
+ session->global /* TALLOC_CTX */);
if (session->global->db_rec == NULL) {
- DEBUG(0, ("smbXsrv_session_update(0x%08x): "
- "Failed to lock global key '%s'\n",
- session->global->session_global_id,
- hex_encode_talloc(talloc_tos(), key.dptr,
- key.dsize)));
return NT_STATUS_INTERNAL_DB_ERROR;
}
}
if (DEBUGLVL(10)) {
- struct smbXsrv_sessionB session_blob;
-
- ZERO_STRUCT(session_blob);
- session_blob.version = SMBXSRV_VERSION_0;
- session_blob.info.info0 = session;
+ struct smbXsrv_sessionB session_blob = {
+ .version = SMBXSRV_VERSION_0,
+ .info.info0 = session,
+ };
DEBUG(10,("smbXsrv_session_update: global_id (0x%08x) stored\n",
session->global->session_global_id));
for (i=0; i < session->global->num_channels; i++) {
struct smbXsrv_channel_global0 *c = &session->global->channels[i];
- if (c->connection == conn) {
- *_c = c;
+ if (c->channel_id != conn->channel_id) {
+ continue;
+ }
+
+ if (c->connection != conn) {
+ continue;
+ }
+
+ *_c = c;
+ return NT_STATUS_OK;
+ }
+
+ return NT_STATUS_USER_SESSION_DELETED;
+}
+
+NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
+ const struct smbXsrv_connection *conn,
+ NTTIME now,
+ struct smbXsrv_session_auth0 **_a)
+{
+ struct smbXsrv_session_auth0 *a;
+
+ for (a = session->pending_auth; a != NULL; a = a->next) {
+ if (a->channel_id != conn->channel_id) {
+ continue;
+ }
+
+ if (a->connection == conn) {
+ if (now != 0) {
+ a->idle_time = now;
+ }
+ *_a = a;
return NT_STATUS_OK;
}
}
return NT_STATUS_USER_SESSION_DELETED;
}
+static int smbXsrv_session_auth0_destructor(struct smbXsrv_session_auth0 *a)
+{
+ if (a->session == NULL) {
+ return 0;
+ }
+
+ DLIST_REMOVE(a->session->pending_auth, a);
+ a->session = NULL;
+ return 0;
+}
+
+NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
+ struct smbXsrv_connection *conn,
+ NTTIME now,
+ uint8_t in_flags,
+ uint8_t in_security_mode,
+ struct smbXsrv_session_auth0 **_a)
+{
+ struct smbXsrv_session_auth0 *a;
+ NTSTATUS status;
+
+ status = smbXsrv_session_find_auth(session, conn, 0, &a);
+ if (NT_STATUS_IS_OK(status)) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ a = talloc_zero(session, struct smbXsrv_session_auth0);
+ if (a == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ a->session = session;
+ a->connection = conn;
+ a->in_flags = in_flags;
+ a->in_security_mode = in_security_mode;
+ a->creation_time = now;
+ a->idle_time = now;
+ a->channel_id = conn->channel_id;
+
+ if (conn->protocol >= PROTOCOL_SMB3_10) {
+ a->preauth = talloc(a, struct smbXsrv_preauth);
+ if (a->preauth == NULL) {
+ TALLOC_FREE(session);
+ return NT_STATUS_NO_MEMORY;
+ }
+ *a->preauth = conn->smb2.preauth;
+ }
+
+ talloc_set_destructor(a, smbXsrv_session_auth0_destructor);
+ DLIST_ADD_END(session->pending_auth, a);
+
+ *_a = a;
+ return NT_STATUS_OK;
+}
+
+NTSTATUS smbXsrv_session_remove_channel(struct smbXsrv_session *session,
+ struct smbXsrv_connection *xconn)
+{
+ struct smbXsrv_session_auth0 *a = NULL;
+ struct smbXsrv_channel_global0 *c = NULL;
+ NTSTATUS status;
+ bool need_update = false;
+
+ status = smbXsrv_session_find_auth(session, xconn, 0, &a);
+ if (!NT_STATUS_IS_OK(status)) {
+ a = NULL;
+ }
+ status = smbXsrv_session_find_channel(session, xconn, &c);
+ if (!NT_STATUS_IS_OK(status)) {
+ c = NULL;
+ }
+ if (session->global->num_channels <= 1) {
+ /*
+ * The last channel is treated different
+ */
+ c = NULL;
+ }
+
+ if (a != NULL) {
+ smbXsrv_session_auth0_destructor(a);
+ a->connection = NULL;
+ need_update = true;
+ }
+
+ if (c != NULL) {
+ struct smbXsrv_session_global0 *global = session->global;
+ ptrdiff_t n;
+
+ n = (c - global->channels);
+ if (n >= global->num_channels || n < 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+ ARRAY_DEL_ELEMENT(global->channels, n, global->num_channels);
+ global->num_channels--;
+ need_update = true;
+ }
+
+ if (!need_update) {
+ return NT_STATUS_OK;
+ }
+
+ return smbXsrv_session_update(session);
+}
+
struct smb2srv_session_shutdown_state {
struct tevent_queue *wait_queue;
};
*/
preq->do_signing = false;
preq->do_encryption = false;
+ preq->preauth = NULL;
if (preq->subreq != NULL) {
tevent_req_cancel(preq->subreq);
session->client = NULL;
session->status = NT_STATUS_USER_SESSION_DELETED;
+ /*
+ * For SMB2 this is a bit redundant as files are also close
+ * below via smb2srv_tcon_disconnect_all() -> ... ->
+ * smbXsrv_tcon_disconnect() -> close_cnum() ->
+ * file_close_conn().
+ */
+ file_close_user(sconn, session->global->session_wire_id);
+
+ if (session->tcon_table != NULL) {
+ /*
+ * Note: We only have a tcon_table for SMB2.
+ */
+ status = smb2srv_tcon_disconnect_all(session);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("smbXsrv_session_logoff(0x%08x): "
+ "smb2srv_tcon_disconnect_all() failed: %s\n",
+ session->global->session_global_id,
+ nt_errstr(status)));
+ error = status;
+ }
+ }
+
+ invalidate_vuid(sconn, session->global->session_wire_id);
+
global_rec = session->global->db_rec;
session->global->db_rec = NULL;
if (global_rec == NULL) {
- uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
- TDB_DATA key;
-
- key = smbXsrv_session_global_id_to_key(
+ global_rec = smbXsrv_session_global_fetch_locked(
+ table->global.db_ctx,
session->global->session_global_id,
- key_buf);
-
- global_rec = dbwrap_fetch_locked(table->global.db_ctx,
- session->global, key);
+ session->global /* TALLOC_CTX */);
if (global_rec == NULL) {
- DEBUG(0, ("smbXsrv_session_logoff(0x%08x): "
- "Failed to lock global key '%s'\n",
- session->global->session_global_id,
- hex_encode_talloc(global_rec, key.dptr,
- key.dsize)));
error = NT_STATUS_INTERNAL_ERROR;
}
}
local_rec = session->db_rec;
if (local_rec == NULL) {
- uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
- TDB_DATA key;
-
- key = smbXsrv_session_local_id_to_key(session->local_id,
- key_buf);
-
- local_rec = dbwrap_fetch_locked(table->local.db_ctx,
- session, key);
+ local_rec = smbXsrv_session_local_fetch_locked(
+ table->local.db_ctx,
+ session->local_id,
+ session /* TALLOC_CTX */);
if (local_rec == NULL) {
- DEBUG(0, ("smbXsrv_session_logoff(0x%08x): "
- "Failed to lock local key '%s'\n",
- session->global->session_global_id,
- hex_encode_talloc(local_rec, key.dptr,
- key.dsize)));
error = NT_STATUS_INTERNAL_ERROR;
}
}
}
session->db_rec = NULL;
- if (session->compat) {
- file_close_user(sconn, session->compat->vuid);
- }
-
- if (session->tcon_table != NULL) {
- /*
- * Note: We only have a tcon_table for SMB2.
- */
- status = smb2srv_tcon_disconnect_all(session);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("smbXsrv_session_logoff(0x%08x): "
- "smb2srv_tcon_disconnect_all() failed: %s\n",
- session->global->session_global_id,
- nt_errstr(status)));
- error = status;
- }
- }
-
- if (session->compat) {
- invalidate_vuid(sconn, session->compat->vuid);
- session->compat = NULL;
- }
-
return error;
}
static int smbXsrv_session_logoff_all_callback(struct db_record *local_rec,
void *private_data);
-NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn)
+NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client)
{
- struct smbXsrv_session_table *table = conn->client->session_table;
+ struct smbXsrv_session_table *table = client->session_table;
struct smbXsrv_session_logoff_all_state state;
NTSTATUS status;
int count = 0;
TDB_DATA val;
void *ptr = NULL;
struct smbXsrv_session *session = NULL;
- struct smbXsrv_connection *xconn = NULL;
NTSTATUS status;
val = dbwrap_record_get_value(local_rec);
session = talloc_get_type_abort(ptr, struct smbXsrv_session);
session->db_rec = local_rec;
+ status = smbXsrv_session_clear_and_logoff(session);
+ session->db_rec = NULL;
+ if (!NT_STATUS_IS_OK(status)) {
+ if (NT_STATUS_IS_OK(state->first_status)) {
+ state->first_status = status;
+ }
+ state->errors++;
+ return 0;
+ }
- if (session->client != NULL) {
- xconn = session->client->connections;
+ return 0;
+}
+
+struct smbXsrv_session_local_trav_state {
+ NTSTATUS status;
+ int (*caller_cb)(struct smbXsrv_session *session,
+ void *caller_data);
+ void *caller_data;
+};
+
+static int smbXsrv_session_local_traverse_cb(struct db_record *local_rec,
+ void *private_data);
+
+NTSTATUS smbXsrv_session_local_traverse(
+ struct smbXsrv_client *client,
+ int (*caller_cb)(struct smbXsrv_session *session,
+ void *caller_data),
+ void *caller_data)
+{
+ struct smbXsrv_session_table *table = client->session_table;
+ struct smbXsrv_session_local_trav_state state;
+ NTSTATUS status;
+ int count = 0;
+
+ state = (struct smbXsrv_session_local_trav_state) {
+ .status = NT_STATUS_OK,
+ .caller_cb = caller_cb,
+ .caller_data = caller_data,
+ };
+
+ if (table == NULL) {
+ DBG_DEBUG("empty session_table, nothing to do.\n");
+ return NT_STATUS_OK;
}
- for (; xconn != NULL; xconn = xconn->next) {
- struct smbd_smb2_request *preq;
- for (preq = xconn->smb2.requests; preq != NULL; preq = preq->next) {
- if (preq->session != session) {
- continue;
- }
+ status = dbwrap_traverse(table->local.db_ctx,
+ smbXsrv_session_local_traverse_cb,
+ &state,
+ &count);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_ERR("dbwrap_traverse() failed: %s\n", nt_errstr(status));
+ return status;
+ }
+ if (!NT_STATUS_IS_OK(state.status)) {
+ DBG_ERR("count[%d] status[%s]\n",
+ count, nt_errstr(state.status));
+ return state.status;
+ }
- preq->session = NULL;
- /*
- * If we no longer have a session we can't
- * sign or encrypt replies.
- */
- preq->do_signing = false;
- preq->do_encryption = false;
- }
+ return NT_STATUS_OK;
+}
+
+static int smbXsrv_session_local_traverse_cb(struct db_record *local_rec,
+ void *private_data)
+{
+ struct smbXsrv_session_local_trav_state *state =
+ (struct smbXsrv_session_local_trav_state *)private_data;
+ TDB_DATA val;
+ void *ptr = NULL;
+ struct smbXsrv_session *session = NULL;
+ int ret;
+
+ val = dbwrap_record_get_value(local_rec);
+ if (val.dsize != sizeof(ptr)) {
+ state->status = NT_STATUS_INTERNAL_ERROR;
+ return -1;
}
- status = smbXsrv_session_logoff(session);
+ memcpy(&ptr, val.dptr, val.dsize);
+ session = talloc_get_type_abort(ptr, struct smbXsrv_session);
+
+ session->db_rec = local_rec;
+ ret = state->caller_cb(session, state->caller_data);
+ session->db_rec = NULL;
+
+ return ret;
+}
+
+struct smbXsrv_session_disconnect_xconn_state {
+ struct smbXsrv_connection *xconn;
+ NTSTATUS first_status;
+ int errors;
+};
+
+static int smbXsrv_session_disconnect_xconn_callback(struct db_record *local_rec,
+ void *private_data);
+
+NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn)
+{
+ struct smbXsrv_client *client = xconn->client;
+ struct smbXsrv_session_table *table = client->session_table;
+ struct smbXsrv_session_disconnect_xconn_state state;
+ NTSTATUS status;
+ int count = 0;
+
+ if (table == NULL) {
+ DBG_ERR("empty session_table, nothing to do.\n");
+ return NT_STATUS_OK;
+ }
+
+ ZERO_STRUCT(state);
+ state.xconn = xconn;
+
+ status = dbwrap_traverse(table->local.db_ctx,
+ smbXsrv_session_disconnect_xconn_callback,
+ &state, &count);
if (!NT_STATUS_IS_OK(status)) {
+ DBG_ERR("dbwrap_traverse() failed: %s\n",
+ nt_errstr(status));
+ return status;
+ }
+
+ if (!NT_STATUS_IS_OK(state.first_status)) {
+ DBG_ERR("count[%d] errors[%d] first[%s]\n",
+ count, state.errors,
+ nt_errstr(state.first_status));
+ return state.first_status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+static int smbXsrv_session_disconnect_xconn_callback(struct db_record *local_rec,
+ void *private_data)
+{
+ struct smbXsrv_session_disconnect_xconn_state *state =
+ (struct smbXsrv_session_disconnect_xconn_state *)private_data;
+ TDB_DATA val;
+ void *ptr = NULL;
+ struct smbXsrv_session *session = NULL;
+ NTSTATUS status;
+
+ val = dbwrap_record_get_value(local_rec);
+ if (val.dsize != sizeof(ptr)) {
+ status = NT_STATUS_INTERNAL_ERROR;
if (NT_STATUS_IS_OK(state->first_status)) {
state->first_status = status;
}
return 0;
}
+ memcpy(&ptr, val.dptr, val.dsize);
+ session = talloc_get_type_abort(ptr, struct smbXsrv_session);
+
+ session->db_rec = local_rec;
+ status = smbXsrv_session_remove_channel(session, state->xconn);
+ session->db_rec = NULL;
+ if (!NT_STATUS_IS_OK(status)) {
+ if (NT_STATUS_IS_OK(state->first_status)) {
+ state->first_status = status;
+ }
+ state->errors++;
+ }
+
return 0;
}
struct smbXsrv_session_table *table = conn->client->session_table;
uint32_t local_id = vuid;
- return smbXsrv_session_local_lookup(table, local_id, now, session);
+ return smbXsrv_session_local_lookup(table, conn, local_id, now,
+ session);
+}
+
+NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
+ uint64_t session_wire_id,
+ struct auth_session_info **si)
+{
+ struct smbXsrv_session_table *table = client->session_table;
+ uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
+ struct smbXsrv_session_local_fetch_state state = {
+ .session = NULL,
+ .status = NT_STATUS_INTERNAL_ERROR,
+ };
+ TDB_DATA key;
+ NTSTATUS status;
+
+ if (session_wire_id == 0) {
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ if (table == NULL) {
+ /* this might happen before the end of negprot */
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ if (table->local.db_ctx == NULL) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ key = smbXsrv_session_local_id_to_key(session_wire_id, key_buf);
+
+ status = dbwrap_parse_record(table->local.db_ctx, key,
+ smbXsrv_session_local_fetch_parser,
+ &state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ if (!NT_STATUS_IS_OK(state.status)) {
+ return state.status;
+ }
+ if (state.session->global->auth_session_info == NULL) {
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ *si = state.session->global->auth_session_info;
+ return NT_STATUS_OK;
+}
+
+/*
+ * In memory of get_valid_user_struct()
+ *
+ * This function is similar to smbXsrv_session_local_lookup() and it's wrappers,
+ * but it doesn't implement the state checks of
+ * those. get_valid_smbXsrv_session() is NOT meant to be called to validate the
+ * session wire-id of incoming SMB requests, it MUST only be used in later
+ * internal processing where the session wire-id has already been validated.
+ */
+NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
+ uint64_t session_wire_id,
+ struct smbXsrv_session **session)
+{
+ struct smbXsrv_session_table *table = client->session_table;
+ uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
+ struct smbXsrv_session_local_fetch_state state = {
+ .session = NULL,
+ .status = NT_STATUS_INTERNAL_ERROR,
+ };
+ TDB_DATA key;
+ NTSTATUS status;
+
+ if (session_wire_id == 0) {
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ if (table == NULL) {
+ /* this might happen before the end of negprot */
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ if (table->local.db_ctx == NULL) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ key = smbXsrv_session_local_id_to_key(session_wire_id, key_buf);
+
+ status = dbwrap_parse_record(table->local.db_ctx, key,
+ smbXsrv_session_local_fetch_parser,
+ &state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ if (!NT_STATUS_IS_OK(state.status)) {
+ return state.status;
+ }
+ if (state.session->global->auth_session_info == NULL) {
+ return NT_STATUS_USER_SESSION_DELETED;
+ }
+
+ *session = state.session;
+ return NT_STATUS_OK;
}
NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn)
}
static NTSTATUS smb2srv_session_lookup_raw(struct smbXsrv_session_table *table,
+ /* conn: optional */
+ struct smbXsrv_connection *conn,
uint64_t session_id, NTTIME now,
struct smbXsrv_session **session)
{
return NT_STATUS_USER_SESSION_DELETED;
}
- return smbXsrv_session_local_lookup(table, local_id, now, session);
+ return smbXsrv_session_local_lookup(table, conn, local_id, now,
+ session);
}
-NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
- uint64_t session_id, NTTIME now,
- struct smbXsrv_session **session)
+NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
+ uint64_t session_id, NTTIME now,
+ struct smbXsrv_session **session)
{
struct smbXsrv_session_table *table = conn->client->session_table;
- return smb2srv_session_lookup_raw(table, session_id, now, session);
+ return smb2srv_session_lookup_raw(table, conn, session_id, now,
+ session);
+}
+
+NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
+ uint64_t session_id, NTTIME now,
+ struct smbXsrv_session **session)
+{
+ struct smbXsrv_session_table *table = client->session_table;
+ return smb2srv_session_lookup_raw(table, NULL, session_id, now,
+ session);
}
struct smbXsrv_session_global_traverse_state {
if (global_blob.version != SMBXSRV_VERSION_0) {
DEBUG(1,("Invalid record in smbXsrv_session_global.tdb:"
- "key '%s' unsuported version - %d\n",
+ "key '%s' unsupported version - %d\n",
hex_encode_talloc(frame, key.dptr, key.dsize),
(int)global_blob.version));
goto done;
};
become_root();
- status = smbXsrv_session_global_init();
+ status = smbXsrv_session_global_init(NULL);
if (!NT_STATUS_IS_OK(status)) {
unbecome_root();
DEBUG(0, ("Failed to initialize session_global: %s\n",
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff