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Merge pull request #13846 from LabNConsulting/chopps/backport-13795

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backport of #13795
This commit is contained in:
Jafar Al-Gharaibeh 2023-06-25 10:22:34 -05:00 committed by GitHub
commit 64ef7364c6
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GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 544 additions and 750 deletions
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5
lib/command.c
View File

@ -1333,11 +1333,12 @@ int config_from_file(struct vty *vty, FILE *fp, unsigned int *line_num)
/* Configuration from terminal */
DEFUN (config_terminal,
config_terminal_cmd,
"configure [terminal]",
"configure [terminal [file-lock]]",
"Configuration from vty interface\n"
"Configuration with locked datastores\n"
"Configuration terminal\n")
{
return vty_config_enter(vty, false, false);
return vty_config_enter(vty, false, false, argc == 3);
}
/* Enable command */

3
lib/mgmt.proto
View File

@ -243,7 +243,8 @@ message FeSetConfigReply {
required DatastoreId ds_id = 2;
required uint64 req_id = 3;
required bool success = 4;
optional string error_if_any = 5;
required bool implicit_commit = 5;
optional string error_if_any = 6;
}
message FeCommitConfigReq {

5
lib/mgmt_fe_client.c
View File

@ -164,7 +164,7 @@ static int mgmt_fe_send_session_req(struct mgmt_fe_client *client,
int mgmt_fe_send_lockds_req(struct mgmt_fe_client *client, uint64_t session_id,
uint64_t req_id, Mgmtd__DatastoreId ds_id,
bool lock)
bool lock, bool scok)
{
(void)req_id;
Mgmtd__FeMessage fe_msg;
@ -185,7 +185,7 @@ int mgmt_fe_send_lockds_req(struct mgmt_fe_client *client, uint64_t session_id,
lock ? "" : "UN", dsid2name(ds_id), session_id);
return mgmt_fe_client_send_msg(client, &fe_msg, false);
return mgmt_fe_client_send_msg(client, &fe_msg, scok);
}
int mgmt_fe_send_setcfg_req(struct mgmt_fe_client *client, uint64_t session_id,
@ -411,6 +411,7 @@ static int mgmt_fe_client_handle_msg(struct mgmt_fe_client *client,
session->user_ctx, fe_msg->setcfg_reply->req_id,
fe_msg->setcfg_reply->success,
fe_msg->setcfg_reply->ds_id,
fe_msg->setcfg_reply->implicit_commit,
fe_msg->setcfg_reply->error_if_any);
break;
case MGMTD__FE_MESSAGE__MESSAGE_COMMCFG_REPLY:

5
lib/mgmt_fe_client.h
View File

@ -91,7 +91,7 @@ struct mgmt_fe_client_cbs {
uintptr_t session_id,
uintptr_t user_session_client,
uint64_t req_id, bool success,
Mgmtd__DatastoreId ds_id,
Mgmtd__DatastoreId ds_id, bool implcit_commit,
char *errmsg_if_any);
void (*commit_config_notify)(struct mgmt_fe_client *client,
@ -219,7 +219,8 @@ mgmt_fe_destroy_client_session(struct mgmt_fe_client *client,
*/
extern int mgmt_fe_send_lockds_req(struct mgmt_fe_client *client,
uint64_t session_id, uint64_t req_id,
Mgmtd__DatastoreId ds_id, bool lock_ds);
Mgmtd__DatastoreId ds_id, bool lock_ds,
bool scok);
/*
* Send SET_CONFIG_REQ to MGMTD for one or more config data(s).

12
lib/mgmt_msg.c
View File

@ -548,20 +548,26 @@ int msg_conn_send_msg(struct msg_conn *conn, uint8_t version, void *msg,
if (conn->remote_conn && short_circuit_ok) {
uint8_t *buf = msg;
size_t n = mlen;
bool old;
if (packf) {
buf = XMALLOC(MTYPE_TMP, mlen);
n = packf(msg, buf);
}
++conn->short_circuit_depth;
MGMT_MSG_DBG(dbgtag, "SC send: depth %u msg: %p",
++conn->short_circuit_depth, msg);
conn->short_circuit_depth, msg);
old = conn->remote_conn->is_short_circuit;
conn->remote_conn->is_short_circuit = true;
conn->remote_conn->handle_msg(version, buf, n,
conn->remote_conn);
conn->remote_conn->is_short_circuit = old;
--conn->short_circuit_depth;
MGMT_MSG_DBG(dbgtag, "SC return from depth: %u msg: %p",
conn->short_circuit_depth--, msg);
conn->short_circuit_depth, msg);
if (packf)
XFREE(MTYPE_TMP, buf);
@ -661,12 +667,10 @@ static bool msg_client_connect_short_circuit(struct msg_client *client)
set_nonblocking(sockets[0]);
setsockopt_so_sendbuf(sockets[0], client->conn.mstate.max_write_buf);
setsockopt_so_recvbuf(sockets[0], client->conn.mstate.max_read_buf);
client->conn.is_short_circuit = true;
/* server side */
memset(&su, 0, sizeof(union sockunion));
server_conn = server->create(sockets[1], &su);
server_conn->is_short_circuit = true;
client->conn.remote_conn = server_conn;
server_conn->remote_conn = &client->conn;

2
lib/mgmt_msg.h
View File

@ -98,8 +98,8 @@ struct msg_conn {
struct msg_conn *conn);
void *user;
uint short_circuit_depth;
bool is_short_circuit; /* true when the message being handled is SC */
bool is_client;
bool is_short_circuit;
bool debug;
};

4
lib/northbound_cli.c
View File

@ -763,7 +763,7 @@ DEFUN (config_exclusive,
"Configuration from vty interface\n"
"Configure exclusively from this terminal\n")
{
return vty_config_enter(vty, true, true);
return vty_config_enter(vty, true, true, false);
}
/* Configure using a private candidate configuration. */
@ -773,7 +773,7 @@ DEFUN (config_private,
"Configuration from vty interface\n"
"Configure using a private candidate configuration\n")
{
return vty_config_enter(vty, true, false);
return vty_config_enter(vty, true, false, false);
}
DEFPY (config_commit,

347
lib/vty.c
View File

@ -70,7 +70,6 @@ struct nb_config *vty_mgmt_candidate_config;
static struct mgmt_fe_client *mgmt_fe_client;
static bool mgmt_fe_connected;
static bool mgmt_candidate_ds_wr_locked;
static uint64_t mgmt_client_id_next;
static uint64_t mgmt_last_req_id = UINT64_MAX;
@ -129,6 +128,35 @@ char const *const mgmt_daemons[] = {
};
uint mgmt_daemons_count = array_size(mgmt_daemons);
static int vty_mgmt_lock_candidate_inline(struct vty *vty)
{
assert(!vty->mgmt_locked_candidate_ds);
(void)vty_mgmt_send_lockds_req(vty, MGMTD_DS_CANDIDATE, true, true);
return vty->mgmt_locked_candidate_ds ? 0 : -1;
}
static int vty_mgmt_unlock_candidate_inline(struct vty *vty)
{
assert(vty->mgmt_locked_candidate_ds);
(void)vty_mgmt_send_lockds_req(vty, MGMTD_DS_CANDIDATE, false, true);
return vty->mgmt_locked_candidate_ds ? -1 : 0;
}
static int vty_mgmt_lock_running_inline(struct vty *vty)
{
assert(!vty->mgmt_locked_running_ds);
(void)vty_mgmt_send_lockds_req(vty, MGMTD_DS_RUNNING, true, true);
return vty->mgmt_locked_running_ds ? 0 : -1;
}
static int vty_mgmt_unlock_running_inline(struct vty *vty)
{
assert(vty->mgmt_locked_running_ds);
(void)vty_mgmt_send_lockds_req(vty, MGMTD_DS_RUNNING, false, true);
return vty->mgmt_locked_running_ds ? -1 : 0;
}
void vty_mgmt_resume_response(struct vty *vty, bool success)
{
uint8_t header[4] = {0, 0, 0, 0};
@ -1648,12 +1676,12 @@ struct vty *vty_new(void)
if (!mgmt_client_id_next)
mgmt_client_id_next++;
new->mgmt_client_id = mgmt_client_id_next++;
if (mgmt_fe_create_client_session(
mgmt_fe_client, new->mgmt_client_id,
(uintptr_t) new) != MGMTD_SUCCESS)
zlog_err(
"Failed to open a MGMTD Frontend session for VTY session %p!!",
new);
new->mgmt_session_id = 0;
mgmt_fe_create_client_session(
mgmt_fe_client, new->mgmt_client_id, (uintptr_t) new);
/* we short-circuit create the session so it must be set now */
assertf(new->mgmt_session_id != 0,
"Failed to create client session for VTY");
}
return new;
@ -2202,10 +2230,11 @@ bool mgmt_vty_read_configs(void)
vty->node = CONFIG_NODE;
vty->config = true;
vty->pending_allowed = true;
vty->candidate_config = vty_shared_candidate_config;
vty->mgmt_locked_candidate_ds = true;
mgmt_candidate_ds_wr_locked = true;
vty->candidate_config = vty_shared_candidate_config;
vty_mgmt_lock_candidate_inline(vty);
vty_mgmt_lock_running_inline(vty);
for (index = 0; index < array_size(mgmt_daemons); index++) {
snprintf(path, sizeof(path), "%s/%s.conf", frr_sysconfdir,
@ -2250,10 +2279,15 @@ bool mgmt_vty_read_configs(void)
fclose(confp);
}
vty->pending_allowed = false;
/* Conditionally unlock as the config file may have "exit"d early which
* would then have unlocked things.
*/
if (vty->mgmt_locked_running_ds)
vty_mgmt_unlock_running_inline(vty);
if (vty->mgmt_locked_candidate_ds)
vty_mgmt_unlock_candidate_inline(vty);
vty->mgmt_locked_candidate_ds = false;
mgmt_candidate_ds_wr_locked = false;
vty->pending_allowed = false;
if (!count)
vty_close(vty);
@ -2367,7 +2401,7 @@ static void vtysh_read(struct event *thread)
*/
if (vty->mgmt_req_pending_cmd) {
MGMTD_FE_CLIENT_DBG(
"postpone CLI cmd response pending mgmtd %s on vty session-id %" PRIu64,
"postpone CLI response pending mgmtd %s on vty session-id %" PRIu64,
vty->mgmt_req_pending_cmd,
vty->mgmt_session_id);
return;
@ -2453,6 +2487,9 @@ void vty_close(struct vty *vty)
MGMTD_FE_CLIENT_ERR(
"vty closed, uncommitted config will be lost.");
/* Drop out of configure / transaction if needed. */
vty_config_exit(vty);
if (mgmt_fe_client && vty->mgmt_session_id) {
MGMTD_FE_CLIENT_DBG("closing vty session");
mgmt_fe_destroy_client_session(mgmt_fe_client,
@ -2460,9 +2497,6 @@ void vty_close(struct vty *vty)
vty->mgmt_session_id = 0;
}
/* Drop out of configure / transaction if needed. */
vty_config_exit(vty);
/* Cancel threads.*/
EVENT_OFF(vty->t_read);
EVENT_OFF(vty->t_write);
@ -2821,28 +2855,35 @@ bool vty_read_config(struct nb_config *config, const char *config_file,
return true;
}
int vty_config_enter(struct vty *vty, bool private_config, bool exclusive)
int vty_config_enter(struct vty *vty, bool private_config, bool exclusive,
bool file_lock)
{
if (exclusive && nb_running_lock(NB_CLIENT_CLI, vty)) {
if (exclusive && !vty_mgmt_fe_enabled() &&
nb_running_lock(NB_CLIENT_CLI, vty)) {
vty_out(vty, "%% Configuration is locked by other client\n");
return CMD_WARNING;
}
if (vty_mgmt_fe_enabled()) {
if (!mgmt_candidate_ds_wr_locked) {
if (vty_mgmt_send_lockds_req(vty, MGMTD_DS_CANDIDATE,
true) != 0) {
vty_out(vty, "Not able to lock candidate DS\n");
return CMD_WARNING;
}
} else {
/*
* We only need to do a lock when reading a config file as we will be
* sending a batch of setcfg changes followed by a single commit
* message. For user interactive mode we are doing implicit commits
* those will obtain the lock (or not) when they try and commit.
*/
if (file_lock && vty_mgmt_fe_enabled() && !private_config) {
if (vty_mgmt_lock_candidate_inline(vty)) {
vty_out(vty,
"Candidate DS already locked by different session\n");
return CMD_WARNING;
"%% Can't enter config; candidate datastore locked by another session\n");
return CMD_WARNING_CONFIG_FAILED;
}
vty->mgmt_locked_candidate_ds = true;
mgmt_candidate_ds_wr_locked = true;
if (vty_mgmt_lock_running_inline(vty)) {
vty_out(vty,
"%% Can't enter config; running datastore locked by another session\n");
vty_mgmt_unlock_candidate_inline(vty);
return CMD_WARNING_CONFIG_FAILED;
}
assert(vty->mgmt_locked_candidate_ds);
assert(vty->mgmt_locked_running_ds);
}
vty->node = CONFIG_NODE;
@ -2855,23 +2896,24 @@ int vty_config_enter(struct vty *vty, bool private_config, bool exclusive)
vty->candidate_config_base = nb_config_dup(running_config);
vty_out(vty,
"Warning: uncommitted changes will be discarded on exit.\n\n");
} else {
/*
* NOTE: On the MGMTD daemon we point the VTY candidate DS to
* the global MGMTD candidate DS. Else we point to the VTY
* Shared Candidate Config.
*/
vty->candidate_config = vty_mgmt_candidate_config
? vty_mgmt_candidate_config
: vty_shared_candidate_config;
if (frr_get_cli_mode() == FRR_CLI_TRANSACTIONAL)
vty->candidate_config_base =
nb_config_dup(running_config);
return CMD_SUCCESS;
}
/*
* NOTE: On the MGMTD daemon we point the VTY candidate DS to
* the global MGMTD candidate DS. Else we point to the VTY
* Shared Candidate Config.
*/
vty->candidate_config = vty_mgmt_candidate_config
? vty_mgmt_candidate_config
: vty_shared_candidate_config;
if (frr_get_cli_mode() == FRR_CLI_TRANSACTIONAL)
vty->candidate_config_base = nb_config_dup(running_config);
return CMD_SUCCESS;
}
void vty_config_exit(struct vty *vty)
{
enum node_type node = vty->node;
@ -2896,21 +2938,13 @@ int vty_config_node_exit(struct vty *vty)
{
vty->xpath_index = 0;
/*
* If we are not reading config file and we are mgmtd FE and we are
* locked then unlock.
*/
if (vty->type != VTY_FILE && vty_mgmt_fe_enabled() &&
mgmt_candidate_ds_wr_locked && vty->mgmt_locked_candidate_ds) {
if (vty_mgmt_send_lockds_req(vty, MGMTD_DS_CANDIDATE, false) !=
0) {
vty_out(vty, "Not able to unlock candidate DS\n");
return CMD_WARNING;
}
/* TODO: could we check for un-commited changes here? */
vty->mgmt_locked_candidate_ds = false;
mgmt_candidate_ds_wr_locked = false;
}
if (vty->mgmt_locked_running_ds)
vty_mgmt_unlock_running_inline(vty);
if (vty->mgmt_locked_candidate_ds)
vty_mgmt_unlock_candidate_inline(vty);
/* Perform any pending commits. */
(void)nb_cli_pending_commit_check(vty);
@ -3493,23 +3527,28 @@ static void vty_mgmt_ds_lock_notified(struct mgmt_fe_client *client,
vty = (struct vty *)session_ctx;
if (!success) {
zlog_err("%socking for DS %u failed, Err: '%s'",
lock_ds ? "L" : "Unl", ds_id, errmsg_if_any);
vty_out(vty, "ERROR: %socking for DS %u failed, Err: '%s'\n",
lock_ds ? "L" : "Unl", ds_id, errmsg_if_any);
} else {
assert(ds_id == MGMTD_DS_CANDIDATE || ds_id == MGMTD_DS_RUNNING);
if (!success)
zlog_err("%socking for DS %u failed, Err: '%s' vty %p",
lock_ds ? "L" : "Unl", ds_id, errmsg_if_any, vty);
else {
MGMTD_FE_CLIENT_DBG("%socked DS %u successfully",
lock_ds ? "L" : "Unl", ds_id);
if (ds_id == MGMTD_DS_CANDIDATE)
vty->mgmt_locked_candidate_ds = lock_ds;
else
vty->mgmt_locked_running_ds = lock_ds;
}
vty_mgmt_resume_response(vty, success);
if (vty->mgmt_req_pending_cmd)
vty_mgmt_resume_response(vty, success);
}
static void vty_mgmt_set_config_result_notified(
struct mgmt_fe_client *client, uintptr_t usr_data, uint64_t client_id,
uintptr_t session_id, uintptr_t session_ctx, uint64_t req_id,
bool success, Mgmtd__DatastoreId ds_id, char *errmsg_if_any)
bool success, Mgmtd__DatastoreId ds_id, bool implicit_commit,
char *errmsg_if_any)
{
struct vty *vty;
@ -3527,6 +3566,12 @@ static void vty_mgmt_set_config_result_notified(
client_id, req_id);
}
if (implicit_commit) {
/* In this case the changes have been applied, we are done */
vty_mgmt_unlock_candidate_inline(vty);
vty_mgmt_unlock_running_inline(vty);
}
vty_mgmt_resume_response(vty, success);
}
@ -3632,23 +3677,24 @@ bool vty_mgmt_should_process_cli_apply_changes(struct vty *vty)
}
int vty_mgmt_send_lockds_req(struct vty *vty, Mgmtd__DatastoreId ds_id,
bool lock)
bool lock, bool scok)
{
if (mgmt_fe_client && vty->mgmt_session_id) {
vty->mgmt_req_id++;
if (mgmt_fe_send_lockds_req(mgmt_fe_client,
vty->mgmt_session_id,
vty->mgmt_req_id, ds_id, lock)) {
zlog_err("Failed sending %sLOCK-DS-REQ req-id %" PRIu64,
lock ? "" : "UN", vty->mgmt_req_id);
vty_out(vty, "Failed to send %sLOCK-DS-REQ to MGMTD!\n",
lock ? "" : "UN");
return -1;
}
assert(mgmt_fe_client);
assert(vty->mgmt_session_id);
vty->mgmt_req_pending_cmd = "MESSAGE_LOCKDS_REQ";
vty->mgmt_req_id++;
if (mgmt_fe_send_lockds_req(mgmt_fe_client, vty->mgmt_session_id,
vty->mgmt_req_id, ds_id, lock, scok)) {
zlog_err("Failed sending %sLOCK-DS-REQ req-id %" PRIu64,
lock ? "" : "UN", vty->mgmt_req_id);
vty_out(vty, "Failed to send %sLOCK-DS-REQ to MGMTD!\n",
lock ? "" : "UN");
return -1;
}
if (!scok)
vty->mgmt_req_pending_cmd = "MESSAGE_LOCKDS_REQ";
return 0;
}
@ -3659,7 +3705,6 @@ int vty_mgmt_send_config_data(struct vty *vty, bool implicit_commit)
Mgmtd__YangCfgDataReq cfg_req[VTY_MAXCFGCHANGES];
Mgmtd__YangCfgDataReq *cfgreq[VTY_MAXCFGCHANGES] = {0};
size_t indx;
int cnt;
if (vty->type == VTY_FILE) {
/*
@ -3667,86 +3712,92 @@ int vty_mgmt_send_config_data(struct vty *vty, bool implicit_commit)
* changes until we are done reading the file and have modified
* the local candidate DS.
*/
assert(vty->mgmt_locked_candidate_ds);
/* no-one else should be sending data right now */
assert(!vty->mgmt_num_pending_setcfg);
return 0;
}
/* If we are FE client and we have a vty then we have a session */
assert(mgmt_fe_client && vty->mgmt_client_id && vty->mgmt_session_id);
if (mgmt_fe_client && vty->mgmt_client_id && !vty->mgmt_session_id) {
/*
* We are connected to mgmtd but we do not yet have an
* established session. this means we need to send any changes
* made during this "down-time" to all backend clients when this
* FE client finishes coming up.
*/
MGMTD_FE_CLIENT_DBG("skipping as no session exists");
if (!vty->num_cfg_changes)
return 0;
}
if (mgmt_fe_client && vty->mgmt_session_id) {
cnt = 0;
for (indx = 0; indx < vty->num_cfg_changes; indx++) {
mgmt_yang_data_init(&cfg_data[cnt]);
if (vty->cfg_changes[indx].value) {
mgmt_yang_data_value_init(&value[cnt]);
value[cnt].encoded_str_val =
(char *)vty->cfg_changes[indx].value;
value[cnt].value_case =
MGMTD__YANG_DATA_VALUE__VALUE_ENCODED_STR_VAL;
cfg_data[cnt].value = &value[cnt];
}
cfg_data[cnt].xpath = vty->cfg_changes[indx].xpath;
mgmt_yang_cfg_data_req_init(&cfg_req[cnt]);
cfg_req[cnt].data = &cfg_data[cnt];
switch (vty->cfg_changes[indx].operation) {
case NB_OP_DESTROY:
cfg_req[cnt].req_type =
MGMTD__CFG_DATA_REQ_TYPE__DELETE_DATA;
break;
case NB_OP_CREATE:
case NB_OP_MODIFY:
case NB_OP_MOVE:
case NB_OP_PRE_VALIDATE:
case NB_OP_APPLY_FINISH:
cfg_req[cnt].req_type =
MGMTD__CFG_DATA_REQ_TYPE__SET_DATA;
break;
case NB_OP_GET_ELEM:
case NB_OP_GET_NEXT:
case NB_OP_GET_KEYS:
case NB_OP_LOOKUP_ENTRY:
case NB_OP_RPC:
assert(!"Invalid type of operation");
break;
default:
assert(!"non-enum value, invalid");
}
cfgreq[cnt] = &cfg_req[cnt];
cnt++;
}
vty->mgmt_req_id++;
if (cnt && mgmt_fe_send_setcfg_req(
mgmt_fe_client, vty->mgmt_session_id,
vty->mgmt_req_id, MGMTD_DS_CANDIDATE, cfgreq,
cnt, implicit_commit,
MGMTD_DS_RUNNING) != MGMTD_SUCCESS) {
zlog_err("Failed to send %d Config Xpaths to MGMTD!!",
(int)indx);
vty_out(vty, "Failed to send SETCFG-REQ to MGMTD!\n");
/* grab the candidate and running lock prior to sending implicit commit
* command
*/
if (implicit_commit) {
if (vty_mgmt_lock_candidate_inline(vty)) {
vty_out(vty,
"%% command failed, could not lock candidate DS\n");
return -1;
} else if (vty_mgmt_lock_running_inline(vty)) {
vty_out(vty,
"%% command failed, could not lock running DS\n");
return -1;
}
vty->mgmt_req_pending_cmd = "MESSAGE_SETCFG_REQ";
}
for (indx = 0; indx < vty->num_cfg_changes; indx++) {
mgmt_yang_data_init(&cfg_data[indx]);
if (vty->cfg_changes[indx].value) {
mgmt_yang_data_value_init(&value[indx]);
value[indx].encoded_str_val =
(char *)vty->cfg_changes[indx].value;
value[indx].value_case =
MGMTD__YANG_DATA_VALUE__VALUE_ENCODED_STR_VAL;
cfg_data[indx].value = &value[indx];
}
cfg_data[indx].xpath = vty->cfg_changes[indx].xpath;
mgmt_yang_cfg_data_req_init(&cfg_req[indx]);
cfg_req[indx].data = &cfg_data[indx];
switch (vty->cfg_changes[indx].operation) {
case NB_OP_DESTROY:
cfg_req[indx].req_type =
MGMTD__CFG_DATA_REQ_TYPE__DELETE_DATA;
break;
case NB_OP_CREATE:
case NB_OP_MODIFY:
case NB_OP_MOVE:
case NB_OP_PRE_VALIDATE:
case NB_OP_APPLY_FINISH:
cfg_req[indx].req_type =
MGMTD__CFG_DATA_REQ_TYPE__SET_DATA;
break;
case NB_OP_GET_ELEM:
case NB_OP_GET_NEXT:
case NB_OP_GET_KEYS:
case NB_OP_LOOKUP_ENTRY:
case NB_OP_RPC:
default:
assertf(false,
"Invalid operation type for send config: %d",
vty->cfg_changes[indx].operation);
/*NOTREACHED*/
abort();
}
cfgreq[indx] = &cfg_req[indx];
}
if (!indx)
return 0;
vty->mgmt_req_id++;
if (mgmt_fe_send_setcfg_req(mgmt_fe_client, vty->mgmt_session_id,
vty->mgmt_req_id, MGMTD_DS_CANDIDATE,
cfgreq, indx, implicit_commit,
MGMTD_DS_RUNNING)) {
zlog_err("Failed to send %zu config xpaths to mgmtd", indx);
vty_out(vty, "%% Failed to send commands to mgmtd\n");
return -1;
}
vty->mgmt_req_pending_cmd = "MESSAGE_SETCFG_REQ";
return 0;
}

5
lib/vty.h
View File

@ -230,6 +230,7 @@ struct vty {
* vty user. */
const char *mgmt_req_pending_cmd;
bool mgmt_locked_candidate_ds;
bool mgmt_locked_running_ds;
};
static inline void vty_push_context(struct vty *vty, int node, uint64_t id)
@ -390,7 +391,7 @@ extern void vty_close(struct vty *);
extern char *vty_get_cwd(void);
extern void vty_update_xpath(const char *oldpath, const char *newpath);
extern int vty_config_enter(struct vty *vty, bool private_config,
bool exclusive);
bool exclusive, bool file_lock);
extern void vty_config_exit(struct vty *);
extern int vty_config_node_exit(struct vty *);
extern int vty_shell(struct vty *);
@ -416,7 +417,7 @@ extern int vty_mgmt_send_get_config(struct vty *vty,
extern int vty_mgmt_send_get_data(struct vty *vty, Mgmtd__DatastoreId datastore,
const char **xpath_list, int num_req);
extern int vty_mgmt_send_lockds_req(struct vty *vty, Mgmtd__DatastoreId ds_id,
bool lock);
bool lock, bool scok);
extern void vty_mgmt_resume_response(struct vty *vty, bool success);
static inline bool vty_needs_implicit_commit(struct vty *vty)

11
mgmtd/mgmt_be_adapter.c
View File

@ -648,8 +648,7 @@ static void mgmt_be_adapter_process_msg(uint8_t version, uint8_t *data,
mgmtd__be_message__free_unpacked(be_msg, NULL);
}
static void mgmt_be_iter_and_get_cfg(struct mgmt_ds_ctx *ds_ctx,
const char *xpath, struct lyd_node *node,
static void mgmt_be_iter_and_get_cfg(const char *xpath, struct lyd_node *node,
struct nb_node *nb_node, void *ctx)
{
struct mgmt_be_get_adapter_config_params *parms = ctx;
@ -806,10 +805,10 @@ mgmt_be_get_adapter_by_name(const char *name)
}
int mgmt_be_get_adapter_config(struct mgmt_be_client_adapter *adapter,
struct mgmt_ds_ctx *ds_ctx,
struct nb_config_cbs **cfg_chgs)
struct nb_config_cbs **cfg_chgs)
{
struct mgmt_be_get_adapter_config_params parms;
struct nb_config *cfg_root = mgmt_ds_get_nb_config(mm->running_ds);
assert(cfg_chgs);
@ -825,8 +824,8 @@ int mgmt_be_get_adapter_config(struct mgmt_be_client_adapter *adapter,
parms.cfg_chgs = &adapter->cfg_chgs;
parms.seq = 0;
mgmt_ds_iter_data(ds_ctx, "", mgmt_be_iter_and_get_cfg,
(void *)&parms);
mgmt_ds_iter_data(MGMTD_DS_RUNNING, cfg_root, "",
mgmt_be_iter_and_get_cfg, (void *)&parms);
}
*cfg_chgs = &adapter->cfg_chgs;

6
mgmtd/mgmt_be_adapter.h
View File

@ -110,10 +110,8 @@ extern struct mgmt_be_client_adapter *
mgmt_be_get_adapter_by_id(enum mgmt_be_client_id id);
/* Fetch backend adapter config. */
extern int
mgmt_be_get_adapter_config(struct mgmt_be_client_adapter *adapter,
struct mgmt_ds_ctx *ds_ctx,
struct nb_config_cbs **cfg_chgs);
extern int mgmt_be_get_adapter_config(struct mgmt_be_client_adapter *adapter,
struct nb_config_cbs **cfg_chgs);
/* Create/destroy a transaction. */
extern int mgmt_be_send_txn_req(struct mgmt_be_client_adapter *adapter,

136
mgmtd/mgmt_ds.c
View File

@ -22,7 +22,9 @@
struct mgmt_ds_ctx {
Mgmtd__DatastoreId ds_id;
int lock; /* 0 unlocked, >0 read locked < write locked */
bool locked;
uint64_t vty_session_id; /* Owner of the lock or 0 */
bool config_ds;
@ -76,29 +78,20 @@ static int mgmt_ds_dump_in_memory(struct mgmt_ds_ctx *ds_ctx,
static int mgmt_ds_replace_dst_with_src_ds(struct mgmt_ds_ctx *src,
struct mgmt_ds_ctx *dst)
{
struct lyd_node *dst_dnode, *src_dnode;
if (!src || !dst)
return -1;
MGMTD_DS_DBG("Replacing %s with %s", mgmt_ds_id2name(dst->ds_id),
mgmt_ds_id2name(src->ds_id));
src_dnode = src->config_ds ? src->root.cfg_root->dnode
: dst->root.dnode_root;
dst_dnode = dst->config_ds ? dst->root.cfg_root->dnode
: dst->root.dnode_root;
if (dst_dnode)
yang_dnode_free(dst_dnode);
/* Not using nb_config_replace as the oper ds does not contain nb_config
*/
dst_dnode = yang_dnode_dup(src_dnode);
if (dst->config_ds)
dst->root.cfg_root->dnode = dst_dnode;
else
dst->root.dnode_root = dst_dnode;
if (src->config_ds && dst->config_ds)
nb_config_replace(dst->root.cfg_root, src->root.cfg_root, true);
else {
assert(!src->config_ds && !dst->config_ds);
if (dst->root.dnode_root)
yang_dnode_free(dst->root.dnode_root);
dst->root.dnode_root = yang_dnode_dup(src->root.dnode_root);
}
if (src->ds_id == MGMTD_DS_CANDIDATE) {
/*
@ -108,8 +101,6 @@ static int mgmt_ds_replace_dst_with_src_ds(struct mgmt_ds_ctx *src,
nb_config_diff_del_changes(&src->root.cfg_root->cfg_chgs);
}
/* TODO: Update the versions if nb_config present */
return 0;
}
@ -117,20 +108,21 @@ static int mgmt_ds_merge_src_with_dst_ds(struct mgmt_ds_ctx *src,
struct mgmt_ds_ctx *dst)
{
int ret;
struct lyd_node **dst_dnode, *src_dnode;
if (!src || !dst)
return -1;
MGMTD_DS_DBG("Merging DS %d with %d", dst->ds_id, src->ds_id);
src_dnode = src->config_ds ? src->root.cfg_root->dnode
: dst->root.dnode_root;
dst_dnode = dst->config_ds ? &dst->root.cfg_root->dnode
: &dst->root.dnode_root;
ret = lyd_merge_siblings(dst_dnode, src_dnode, 0);
if (src->config_ds && dst->config_ds)
ret = nb_config_merge(dst->root.cfg_root, src->root.cfg_root,
true);
else {
assert(!src->config_ds && !dst->config_ds);
ret = lyd_merge_siblings(&dst->root.dnode_root,
src->root.dnode_root, 0);
}
if (ret != 0) {
MGMTD_DS_ERR("lyd_merge() failed with err %d", ret);
MGMTD_DS_ERR("merge failed with err: %d", ret);
return ret;
}
@ -212,9 +204,11 @@ int mgmt_ds_init(struct mgmt_master *mm)
void mgmt_ds_destroy(void)
{
/*
* TODO: Free the datastores.
*/
nb_config_free(candidate.root.cfg_root);
candidate.root.cfg_root = NULL;
yang_dnode_free(oper.root.dnode_root);
oper.root.dnode_root = NULL;
}
struct mgmt_ds_ctx *mgmt_ds_get_ctx_by_id(struct mgmt_master *mm,
@ -244,40 +238,33 @@ bool mgmt_ds_is_config(struct mgmt_ds_ctx *ds_ctx)
return ds_ctx->config_ds;
}
int mgmt_ds_read_lock(struct mgmt_ds_ctx *ds_ctx)
bool mgmt_ds_is_locked(struct mgmt_ds_ctx *ds_ctx, uint64_t session_id)
{
if (!ds_ctx)
return EINVAL;
if (ds_ctx->lock < 0)
assert(ds_ctx);
return (ds_ctx->locked && ds_ctx->vty_session_id == session_id);
}
int mgmt_ds_lock(struct mgmt_ds_ctx *ds_ctx, uint64_t session_id)
{
assert(ds_ctx);
if (ds_ctx->locked)
return EBUSY;
++ds_ctx->lock;
ds_ctx->locked = true;
ds_ctx->vty_session_id = session_id;
return 0;
}
int mgmt_ds_write_lock(struct mgmt_ds_ctx *ds_ctx)
void mgmt_ds_unlock(struct mgmt_ds_ctx *ds_ctx)
{
if (!ds_ctx)
return EINVAL;
if (ds_ctx->lock != 0)
return EBUSY;
ds_ctx->lock = -1;
return 0;
}
int mgmt_ds_unlock(struct mgmt_ds_ctx *ds_ctx)
{
if (!ds_ctx)
return EINVAL;
if (ds_ctx->lock > 0)
--ds_ctx->lock;
else if (ds_ctx->lock < 0) {
assert(ds_ctx->lock == -1);
ds_ctx->lock = 0;
} else {
assert(ds_ctx->lock != 0);
return EINVAL;
}
return 0;
assert(ds_ctx);
if (!ds_ctx->locked)
zlog_warn(
"%s: WARNING: unlock on unlocked in DS:%s last session-id %" PRIu64,
__func__, mgmt_ds_id2name(ds_ctx->ds_id),
ds_ctx->vty_session_id);
ds_ctx->locked = 0;
}
int mgmt_ds_copy_dss(struct mgmt_ds_ctx *src_ds_ctx,
@ -314,10 +301,9 @@ struct nb_config *mgmt_ds_get_nb_config(struct mgmt_ds_ctx *ds_ctx)
}
static int mgmt_walk_ds_nodes(
struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
struct nb_config *root, const char *base_xpath,
struct lyd_node *base_dnode,
void (*mgmt_ds_node_iter_fn)(struct mgmt_ds_ctx *ds_ctx,
const char *xpath, struct lyd_node *node,
void (*mgmt_ds_node_iter_fn)(const char *xpath, struct lyd_node *node,
struct nb_node *nb_node, void *ctx),
void *ctx)
{
@ -336,10 +322,7 @@ static int mgmt_walk_ds_nodes(
* This function only returns the first node of a possible set
* of matches issuing a warning if more than 1 matches
*/
base_dnode = yang_dnode_get(
ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode
: ds_ctx->root.dnode_root,
base_xpath);
base_dnode = yang_dnode_get(root->dnode, base_xpath);
if (!base_dnode)
return -1;
@ -348,7 +331,7 @@ static int mgmt_walk_ds_nodes(
sizeof(xpath)));
nbnode = (struct nb_node *)base_dnode->schema->priv;
(*mgmt_ds_node_iter_fn)(ds_ctx, base_xpath, base_dnode, nbnode, ctx);
(*mgmt_ds_node_iter_fn)(base_xpath, base_dnode, nbnode, ctx);
/*
* If the base_xpath points to a leaf node we can skip the tree walk.
@ -370,7 +353,7 @@ static int mgmt_walk_ds_nodes(
MGMTD_DS_DBG(" -- Child xpath: %s", xpath);
ret = mgmt_walk_ds_nodes(ds_ctx, xpath, dnode,
ret = mgmt_walk_ds_nodes(root, xpath, dnode,
mgmt_ds_node_iter_fn, ctx);
if (ret != 0)
break;
@ -459,9 +442,9 @@ int mgmt_ds_load_config_from_file(struct mgmt_ds_ctx *dst,
return 0;
}
int mgmt_ds_iter_data(struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
void (*mgmt_ds_node_iter_fn)(struct mgmt_ds_ctx *ds_ctx,
const char *xpath,
int mgmt_ds_iter_data(Mgmtd__DatastoreId ds_id, struct nb_config *root,
const char *base_xpath,
void (*mgmt_ds_node_iter_fn)(const char *xpath,
struct lyd_node *node,
struct nb_node *nb_node,
void *ctx),
@ -472,7 +455,7 @@ int mgmt_ds_iter_data(struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
struct lyd_node *base_dnode = NULL;
struct lyd_node *node;
if (!ds_ctx)
if (!root)
return -1;
strlcpy(xpath, base_xpath, sizeof(xpath));
@ -484,12 +467,11 @@ int mgmt_ds_iter_data(struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
* Oper-state should be kept in mind though for the prefix walk
*/
MGMTD_DS_DBG(" -- START DS walk for DSid: %d", ds_ctx->ds_id);
MGMTD_DS_DBG(" -- START DS walk for DSid: %d", ds_id);
/* If the base_xpath is empty then crawl the sibblings */
if (xpath[0] == 0) {
base_dnode = ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode
: ds_ctx->root.dnode_root;
base_dnode = root->dnode;
/* get first top-level sibling */
while (base_dnode->parent)
@ -499,11 +481,11 @@ int mgmt_ds_iter_data(struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
base_dnode = base_dnode->prev;
LY_LIST_FOR (base_dnode, node) {
ret = mgmt_walk_ds_nodes(ds_ctx, xpath, node,
ret = mgmt_walk_ds_nodes(root, xpath, node,
mgmt_ds_node_iter_fn, ctx);
}
} else
ret = mgmt_walk_ds_nodes(ds_ctx, xpath, base_dnode,
ret = mgmt_walk_ds_nodes(root, xpath, base_dnode,
mgmt_ds_node_iter_fn, ctx);
return ret;

21
mgmtd/mgmt_ds.h
View File

@ -179,19 +179,19 @@ extern struct mgmt_ds_ctx *mgmt_ds_get_ctx_by_id(struct mgmt_master *mm,
extern bool mgmt_ds_is_config(struct mgmt_ds_ctx *ds_ctx);
/*
* Acquire read lock to a ds given a ds_handle
* Check if a given datastore is locked by a given session
*/
extern int mgmt_ds_read_lock(struct mgmt_ds_ctx *ds_ctx);
extern bool mgmt_ds_is_locked(struct mgmt_ds_ctx *ds_ctx, uint64_t session_id);
/*
* Acquire write lock to a ds given a ds_handle
*/
extern int mgmt_ds_write_lock(struct mgmt_ds_ctx *ds_ctx);
extern int mgmt_ds_lock(struct mgmt_ds_ctx *ds_ctx, uint64_t session_id);
/*
* Remove a lock from ds given a ds_handle
*/
extern int mgmt_ds_unlock(struct mgmt_ds_ctx *ds_ctx);
extern void mgmt_ds_unlock(struct mgmt_ds_ctx *ds_ctx);
/*
* Copy from source to destination datastore.
@ -233,8 +233,11 @@ extern int mgmt_ds_delete_data_nodes(struct mgmt_ds_ctx *ds_ctx,
/*
* Iterate over datastore data.
*
* ds_ctx
* Datastore context.
* ds_id
* Datastore ID..
*
* root
* The root of the tree to iterate over.
*
* base_xpath
* Base YANG xpath from where needs to be iterated.
@ -252,9 +255,9 @@ extern int mgmt_ds_delete_data_nodes(struct mgmt_ds_ctx *ds_ctx,
* 0 on success, -1 on failure.
*/
extern int mgmt_ds_iter_data(
struct mgmt_ds_ctx *ds_ctx, const char *base_xpath,
void (*mgmt_ds_node_iter_fn)(struct mgmt_ds_ctx *ds_ctx,
const char *xpath, struct lyd_node *node,
Mgmtd__DatastoreId ds_id, struct nb_config *root,
const char *base_xpath,
void (*mgmt_ds_node_iter_fn)(const char *xpath, struct lyd_node *node,
struct nb_node *nb_node, void *ctx),
void *ctx);

489
mgmtd/mgmt_fe_adapter.c
View File

@ -40,9 +40,7 @@ struct mgmt_fe_session_ctx {
uint64_t client_id;
uint64_t txn_id;
uint64_t cfg_txn_id;
uint8_t ds_write_locked[MGMTD_DS_MAX_ID];
uint8_t ds_read_locked[MGMTD_DS_MAX_ID];
uint8_t ds_locked_implict[MGMTD_DS_MAX_ID];
uint8_t ds_locked[MGMTD_DS_MAX_ID];
struct event *proc_cfg_txn_clnp;
struct event *proc_show_txn_clnp;
@ -72,8 +70,12 @@ mgmt_fe_session_write_lock_ds(Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
struct mgmt_fe_session_ctx *session)
{
if (!session->ds_write_locked[ds_id]) {
if (mgmt_ds_write_lock(ds_ctx) != 0) {
if (session->ds_locked[ds_id])
zlog_warn("multiple lock taken by session-id: %" PRIu64
" on DS:%s",
session->session_id, mgmt_ds_id2name(ds_id));
else {
if (mgmt_ds_lock(ds_ctx, session->session_id)) {
MGMTD_FE_ADAPTER_DBG(
"Failed to lock the DS:%s for session-id: %" PRIu64
" from %s!",
@ -82,7 +84,7 @@ mgmt_fe_session_write_lock_ds(Mgmtd__DatastoreId ds_id,
return -1;
}
session->ds_write_locked[ds_id] = true;
session->ds_locked[ds_id] = true;
MGMTD_FE_ADAPTER_DBG(
"Write-Locked the DS:%s for session-id: %" PRIu64
" from %s",
@ -93,97 +95,32 @@ mgmt_fe_session_write_lock_ds(Mgmtd__DatastoreId ds_id,
return 0;
}
static int
mgmt_fe_session_read_lock_ds(Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
struct mgmt_fe_session_ctx *session)
static void mgmt_fe_session_unlock_ds(Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
struct mgmt_fe_session_ctx *session)
{
if (!session->ds_read_locked[ds_id]) {
if (mgmt_ds_read_lock(ds_ctx) != 0) {
MGMTD_FE_ADAPTER_DBG(
"Failed to lock the DS:%s for session-is: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
return -1;
}
if (!session->ds_locked[ds_id])
zlog_warn("unlock unlocked by session-id: %" PRIu64 " on DS:%s",
session->session_id, mgmt_ds_id2name(ds_id));
session->ds_read_locked[ds_id] = true;
MGMTD_FE_ADAPTER_DBG(
"Read-Locked the DS:%s for session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
}
return 0;
}
static int mgmt_fe_session_unlock_ds(Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
struct mgmt_fe_session_ctx *session,
bool unlock_write, bool unlock_read)
{
if (unlock_write && session->ds_write_locked[ds_id]) {
session->ds_write_locked[ds_id] = false;
session->ds_locked_implict[ds_id] = false;
if (mgmt_ds_unlock(ds_ctx) != 0) {
MGMTD_FE_ADAPTER_DBG(
"Failed to unlock the DS:%s taken earlier by session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
return -1;
}
MGMTD_FE_ADAPTER_DBG(
"Unlocked DS:%s write-locked earlier by session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
} else if (unlock_read && session->ds_read_locked[ds_id]) {
session->ds_read_locked[ds_id] = false;
session->ds_locked_implict[ds_id] = false;
if (mgmt_ds_unlock(ds_ctx) != 0) {
MGMTD_FE_ADAPTER_DBG(
"Failed to unlock the DS:%s taken earlier by session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
return -1;
}
MGMTD_FE_ADAPTER_DBG(
"Unlocked DS:%s read-locked earlier by session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
}
return 0;
session->ds_locked[ds_id] = false;
mgmt_ds_unlock(ds_ctx);
MGMTD_FE_ADAPTER_DBG(
"Unlocked DS:%s write-locked earlier by session-id: %" PRIu64
" from %s",
mgmt_ds_id2name(ds_id), session->session_id,
session->adapter->name);
}
static void
mgmt_fe_session_cfg_txn_cleanup(struct mgmt_fe_session_ctx *session)
{
Mgmtd__DatastoreId ds_id;
struct mgmt_ds_ctx *ds_ctx;
/*
* Ensure any uncommitted changes in Candidate DS
* is discarded.
*/
mgmt_ds_copy_dss(mm->running_ds, mm->candidate_ds, false);
for (ds_id = 0; ds_id < MGMTD_DS_MAX_ID; ds_id++) {
ds_ctx = mgmt_ds_get_ctx_by_id(mm, ds_id);
if (ds_ctx) {
if (session->ds_locked_implict[ds_id])
mgmt_fe_session_unlock_ds(
ds_id, ds_ctx, session, true, false);
}
}
/*
* Destroy the actual transaction created earlier.
*/
@ -194,17 +131,6 @@ mgmt_fe_session_cfg_txn_cleanup(struct mgmt_fe_session_ctx *session)
static void
mgmt_fe_session_show_txn_cleanup(struct mgmt_fe_session_ctx *session)
{
Mgmtd__DatastoreId ds_id;
struct mgmt_ds_ctx *ds_ctx;
for (ds_id = 0; ds_id < MGMTD_DS_MAX_ID; ds_id++) {
ds_ctx = mgmt_ds_get_ctx_by_id(mm, ds_id);
if (ds_ctx) {
mgmt_fe_session_unlock_ds(ds_id, ds_ctx, session,
false, true);
}
}
/*
* Destroy the transaction created recently.
*/
@ -245,25 +171,29 @@ mgmt_fe_session_compute_commit_timers(struct mgmt_commit_stats *cmt_stats)
}
}
static void mgmt_fe_cleanup_session(struct mgmt_fe_session_ctx **session)
static void mgmt_fe_cleanup_session(struct mgmt_fe_session_ctx **sessionp)
{
if ((*session)->adapter) {
mgmt_fe_session_cfg_txn_cleanup((*session));
mgmt_fe_session_show_txn_cleanup((*session));
mgmt_fe_session_unlock_ds(MGMTD_DS_CANDIDATE, mm->candidate_ds,
*session, true, true);
mgmt_fe_session_unlock_ds(MGMTD_DS_RUNNING, mm->running_ds,
*session, true, true);
Mgmtd__DatastoreId ds_id;
struct mgmt_ds_ctx *ds_ctx;
struct mgmt_fe_session_ctx *session = *sessionp;
mgmt_fe_sessions_del(&(*session)->adapter->fe_sessions,
*session);
assert((*session)->adapter->refcount > 1);
mgmt_fe_adapter_unlock(&(*session)->adapter);
if (session->adapter) {
mgmt_fe_session_cfg_txn_cleanup(session);
mgmt_fe_session_show_txn_cleanup(session);
for (ds_id = 0; ds_id < MGMTD_DS_MAX_ID; ds_id++) {
ds_ctx = mgmt_ds_get_ctx_by_id(mm, ds_id);
if (ds_ctx && session->ds_locked[ds_id])
mgmt_fe_session_unlock_ds(ds_id, ds_ctx,
session);
}
mgmt_fe_sessions_del(&session->adapter->fe_sessions, session);
assert(session->adapter->refcount > 1);
mgmt_fe_adapter_unlock(&session->adapter);
}
hash_release(mgmt_fe_sessions, *session);
XFREE(MTYPE_MGMTD_FE_SESSION, *session);
*session = NULL;
hash_release(mgmt_fe_sessions, session);
XFREE(MTYPE_MGMTD_FE_SESSION, session);
*sessionp = NULL;
}
static struct mgmt_fe_session_ctx *
@ -389,6 +319,7 @@ static int mgmt_fe_send_lockds_reply(struct mgmt_fe_session_ctx *session,
{
Mgmtd__FeMessage fe_msg;
Mgmtd__FeLockDsReply lockds_reply;
bool scok = session->adapter->conn->is_short_circuit;
assert(session->adapter);
@ -406,10 +337,10 @@ static int mgmt_fe_send_lockds_reply(struct mgmt_fe_session_ctx *session,
fe_msg.lockds_reply = &lockds_reply;
MGMTD_FE_ADAPTER_DBG(
"Sending LOCK_DS_REPLY message to MGMTD Frontend client '%s'",
session->adapter->name);
"Sending LOCK_DS_REPLY message to MGMTD Frontend client '%s' scok: %d",
session->adapter->name, scok);
return mgmt_fe_adapter_send_msg(session->adapter, &fe_msg, false);
return mgmt_fe_adapter_send_msg(session->adapter, &fe_msg, scok);
}
static int mgmt_fe_send_setcfg_reply(struct mgmt_fe_session_ctx *session,
@ -432,6 +363,7 @@ static int mgmt_fe_send_setcfg_reply(struct mgmt_fe_session_ctx *session,
setcfg_reply.ds_id = ds_id;
setcfg_reply.req_id = req_id;
setcfg_reply.success = success;
setcfg_reply.implicit_commit = implicit_commit;
if (error_if_any)
setcfg_reply.error_if_any = (char *)error_if_any;
@ -670,8 +602,7 @@ static int mgmt_fe_adapter_notify_disconnect(struct msg_conn *conn)
}
/*
* XXX chopps: get rid of this, we should have deleted sessions when there was a
* disconnect
* Purge any old connections that share the same client name with `adapter`
*/
static void
mgmt_fe_adapter_cleanup_old_conn(struct mgmt_fe_client_adapter *adapter)
@ -679,17 +610,16 @@ mgmt_fe_adapter_cleanup_old_conn(struct mgmt_fe_client_adapter *adapter)
struct mgmt_fe_client_adapter *old;
FOREACH_ADAPTER_IN_LIST (old) {
if (old != adapter &&
!strncmp(adapter->name, old->name, sizeof(adapter->name))) {
/*
* We have a Zombie lingering around
*/
MGMTD_FE_ADAPTER_DBG(
"Client '%s' (FD:%d) seems to have reconnected. Removing old connection (FD:%d)!",
adapter->name, adapter->conn->fd,
old->conn->fd);
msg_conn_disconnect(old->conn, false);
}
if (old == adapter)
continue;
if (strncmp(adapter->name, old->name, sizeof(adapter->name)))
continue;
MGMTD_FE_ADAPTER_DBG(
"Client '%s' (FD:%d) seems to have reconnected. Removing old connection (FD:%d)",
adapter->name, adapter->conn->fd,
old->conn->fd);
msg_conn_disconnect(old->conn, false);
}
}
@ -699,16 +629,12 @@ mgmt_fe_session_handle_lockds_req_msg(struct mgmt_fe_session_ctx *session,
{
struct mgmt_ds_ctx *ds_ctx;
/*
* Next check first if the SETCFG_REQ is for Candidate DS
* or not. Report failure if its not. MGMTD currently only
* supports editing the Candidate DS.
*/
if (lockds_req->ds_id != MGMTD_DS_CANDIDATE) {
if (lockds_req->ds_id != MGMTD_DS_CANDIDATE &&
lockds_req->ds_id != MGMTD_DS_RUNNING) {
mgmt_fe_send_lockds_reply(
session, lockds_req->ds_id, lockds_req->req_id,
lockds_req->lock, false,
"Lock/Unlock on datastores other than Candidate DS not permitted!");
"Lock/Unlock on DS other than candidate or running DS not supported");
return -1;
}
@ -731,10 +657,8 @@ mgmt_fe_session_handle_lockds_req_msg(struct mgmt_fe_session_ctx *session,
"Lock already taken on DS by another session!");
return -1;
}
session->ds_locked_implict[lockds_req->ds_id] = false;
} else {
if (!session->ds_write_locked[lockds_req->ds_id]) {
if (!session->ds_locked[lockds_req->ds_id]) {
mgmt_fe_send_lockds_reply(
session, lockds_req->ds_id, lockds_req->req_id,
lockds_req->lock, false,
@ -742,8 +666,7 @@ mgmt_fe_session_handle_lockds_req_msg(struct mgmt_fe_session_ctx *session,
return 0;
}
(void)mgmt_fe_session_unlock_ds(lockds_req->ds_id, ds_ctx,
session, true, false);
mgmt_fe_session_unlock_ds(lockds_req->ds_id, ds_ctx, session);
}
if (mgmt_fe_send_lockds_reply(session, lockds_req->ds_id,
@ -769,79 +692,49 @@ static int
mgmt_fe_session_handle_setcfg_req_msg(struct mgmt_fe_session_ctx *session,
Mgmtd__FeSetConfigReq *setcfg_req)
{
uint64_t cfg_session_id;
struct mgmt_ds_ctx *ds_ctx, *dst_ds_ctx;
struct mgmt_ds_ctx *ds_ctx, *dst_ds_ctx = NULL;
bool txn_created = false;
if (mm->perf_stats_en)
gettimeofday(&session->adapter->setcfg_stats.last_start, NULL);
/*
* Next check first if the SETCFG_REQ is for Candidate DS
* or not. Report failure if its not. MGMTD currently only
* supports editing the Candidate DS.
*/
/* MGMTD currently only supports editing the candidate DS. */
if (setcfg_req->ds_id != MGMTD_DS_CANDIDATE) {
mgmt_fe_send_setcfg_reply(
session, setcfg_req->ds_id, setcfg_req->req_id, false,
"Set-Config on datastores other than Candidate DS not permitted!",
"Set-Config on datastores other than Candidate DS not supported",
setcfg_req->implicit_commit);
return 0;
}
/*
* Get the DS handle.
*/
ds_ctx = mgmt_ds_get_ctx_by_id(mm, setcfg_req->ds_id);
if (!ds_ctx) {
assert(ds_ctx);
/* MGMTD currently only supports targetting the running DS. */
if (setcfg_req->implicit_commit &&
setcfg_req->commit_ds_id != MGMTD_DS_RUNNING) {
mgmt_fe_send_setcfg_reply(
session, setcfg_req->ds_id, setcfg_req->req_id, false,
"No such DS exists!", setcfg_req->implicit_commit);
"Implicit commit on datastores other than running DS not supported",
setcfg_req->implicit_commit);
return 0;
}
dst_ds_ctx = mgmt_ds_get_ctx_by_id(mm, setcfg_req->commit_ds_id);
assert(dst_ds_ctx);
/* User should have write lock to change the DS */
if (!session->ds_locked[setcfg_req->ds_id]) {
mgmt_fe_send_setcfg_reply(session, setcfg_req->ds_id,
setcfg_req->req_id, false,
"Candidate DS is not locked",
setcfg_req->implicit_commit);
return 0;
}
if (session->cfg_txn_id == MGMTD_TXN_ID_NONE) {
/*
* Check first if the current session can run a CONFIG
* transaction or not. Report failure if a CONFIG transaction
* from another session is already in progress.
*/
cfg_session_id = mgmt_config_txn_in_progress();
if (cfg_session_id != MGMTD_SESSION_ID_NONE) {
assert(cfg_session_id != session->session_id);
mgmt_fe_send_setcfg_reply(
session, setcfg_req->ds_id, setcfg_req->req_id,
false,
"Configuration already in-progress through a different user session!",
setcfg_req->implicit_commit);
goto mgmt_fe_sess_handle_setcfg_req_failed;
}
/* as we have the lock no-one else should have a config txn */
assert(mgmt_config_txn_in_progress() == MGMTD_SESSION_ID_NONE);
/*
* Try taking write-lock on the requested DS (if not already).
*/
if (!session->ds_write_locked[setcfg_req->ds_id]) {
MGMTD_FE_ADAPTER_ERR(
"SETCFG_REQ on session-id: %" PRIu64
" without obtaining lock",
session->session_id);
if (mgmt_fe_session_write_lock_ds(setcfg_req->ds_id,
ds_ctx, session)
!= 0) {
mgmt_fe_send_setcfg_reply(
session, setcfg_req->ds_id,
setcfg_req->req_id, false,
"Failed to lock the DS!",
setcfg_req->implicit_commit);
goto mgmt_fe_sess_handle_setcfg_req_failed;
}
session->ds_locked_implict[setcfg_req->ds_id] = true;
}
/*
* Start a CONFIG Transaction (if not started already)
*/
/* Start a CONFIG Transaction (if not started already) */
session->cfg_txn_id = mgmt_create_txn(session->session_id,
MGMTD_TXN_TYPE_CONFIG);
if (session->cfg_txn_id == MGMTD_SESSION_ID_NONE) {
@ -850,14 +743,15 @@ mgmt_fe_session_handle_setcfg_req_msg(struct mgmt_fe_session_ctx *session,
false,
"Failed to create a Configuration session!",
setcfg_req->implicit_commit);
goto mgmt_fe_sess_handle_setcfg_req_failed;
return 0;
}
txn_created = true;
MGMTD_FE_ADAPTER_DBG("Created new Config txn-id: %" PRIu64
" for session-id %" PRIu64,
session->cfg_txn_id, session->session_id);
} else {
MGMTD_FE_ADAPTER_ERR("Config txn-id: %" PRIu64
MGMTD_FE_ADAPTER_DBG("Config txn-id: %" PRIu64
" for session-id: %" PRIu64
" already created",
session->cfg_txn_id, session->session_id);
@ -876,22 +770,7 @@ mgmt_fe_session_handle_setcfg_req_msg(struct mgmt_fe_session_ctx *session,
}
}
dst_ds_ctx = 0;
if (setcfg_req->implicit_commit) {
dst_ds_ctx =
mgmt_ds_get_ctx_by_id(mm, setcfg_req->commit_ds_id);
if (!dst_ds_ctx) {
mgmt_fe_send_setcfg_reply(
session, setcfg_req->ds_id, setcfg_req->req_id,
false, "No such commit DS exists!",
setcfg_req->implicit_commit);
return 0;
}
}
/*
* Create the SETConfig request under the transaction.
*/
/* Create the SETConfig request under the transaction. */
if (mgmt_txn_send_set_config_req(
session->cfg_txn_id, setcfg_req->req_id, setcfg_req->ds_id,
ds_ctx, setcfg_req->data, setcfg_req->n_data,
@ -902,23 +781,13 @@ mgmt_fe_session_handle_setcfg_req_msg(struct mgmt_fe_session_ctx *session,
session, setcfg_req->ds_id, setcfg_req->req_id, false,
"Request processing for SET-CONFIG failed!",
setcfg_req->implicit_commit);
goto mgmt_fe_sess_handle_setcfg_req_failed;
/* delete transaction if we just created it */
if (txn_created)
mgmt_destroy_txn(&session->cfg_txn_id);
}
return 0;
mgmt_fe_sess_handle_setcfg_req_failed:
/*
* Delete transaction created recently.
*/
if (session->cfg_txn_id != MGMTD_TXN_ID_NONE)
mgmt_destroy_txn(&session->cfg_txn_id);
if (ds_ctx && session->ds_write_locked[setcfg_req->ds_id])
mgmt_fe_session_unlock_ds(setcfg_req->ds_id, ds_ctx, session,
true, false);
return 0;
}
static int
@ -926,6 +795,7 @@ mgmt_fe_session_handle_getcfg_req_msg(struct mgmt_fe_session_ctx *session,
Mgmtd__FeGetConfigReq *getcfg_req)
{
struct mgmt_ds_ctx *ds_ctx;
struct nb_config *cfg_root = NULL;
/*
* Get the DS handle.
@ -938,11 +808,7 @@ mgmt_fe_session_handle_getcfg_req_msg(struct mgmt_fe_session_ctx *session,
return 0;
}
/*
* Next check first if the GETCFG_REQ is for Candidate DS
* or not. Report failure if its not. MGMTD currently only
* supports editing the Candidate DS.
*/
/* GETCFG must be on candidate or running DS */
if (getcfg_req->ds_id != MGMTD_DS_CANDIDATE
&& getcfg_req->ds_id != MGMTD_DS_RUNNING) {
mgmt_fe_send_getcfg_reply(
@ -953,27 +819,6 @@ mgmt_fe_session_handle_getcfg_req_msg(struct mgmt_fe_session_ctx *session,
}
if (session->txn_id == MGMTD_TXN_ID_NONE) {
/*
* Try taking read-lock on the requested DS (if not already
* locked). If the DS has already been write-locked by a ongoing
* CONFIG transaction we may allow reading the contents of the
* same DS.
*/
if (!session->ds_read_locked[getcfg_req->ds_id]
&& !session->ds_write_locked[getcfg_req->ds_id]) {
if (mgmt_fe_session_read_lock_ds(getcfg_req->ds_id,
ds_ctx, session)
!= 0) {
mgmt_fe_send_getcfg_reply(
session, getcfg_req->ds_id,
getcfg_req->req_id, false, NULL,
"Failed to lock the DS! Another session might have locked it!");
goto mgmt_fe_sess_handle_getcfg_req_failed;
}
session->ds_locked_implict[getcfg_req->ds_id] = true;
}
/*
* Start a SHOW Transaction (if not started already)
*/
@ -997,13 +842,17 @@ mgmt_fe_session_handle_getcfg_req_msg(struct mgmt_fe_session_ctx *session,
session->txn_id, session->session_id);
}
/*
* Get a copy of the datastore config root, avoids locking.
*/
cfg_root = nb_config_dup(mgmt_ds_get_nb_config(ds_ctx));
/*
* Create a GETConfig request under the transaction.
*/
if (mgmt_txn_send_get_config_req(session->txn_id, getcfg_req->req_id,
getcfg_req->ds_id, ds_ctx,
getcfg_req->data, getcfg_req->n_data)
!= 0) {
if (mgmt_txn_send_get_config_req(
session->txn_id, getcfg_req->req_id, getcfg_req->ds_id,
cfg_root, getcfg_req->data, getcfg_req->n_data) != 0) {
mgmt_fe_send_getcfg_reply(
session, getcfg_req->ds_id, getcfg_req->req_id, false,
NULL, "Request processing for GET-CONFIG failed!");
@ -1014,14 +863,13 @@ mgmt_fe_session_handle_getcfg_req_msg(struct mgmt_fe_session_ctx *session,
mgmt_fe_sess_handle_getcfg_req_failed:
if (cfg_root)
nb_config_free(cfg_root);
/*
* Destroy the transaction created recently.
*/
if (session->txn_id != MGMTD_TXN_ID_NONE)
mgmt_destroy_txn(&session->txn_id);
if (ds_ctx && session->ds_read_locked[getcfg_req->ds_id])
mgmt_fe_session_unlock_ds(getcfg_req->ds_id, ds_ctx, session,
false, true);
return -1;
}
@ -1043,28 +891,16 @@ mgmt_fe_session_handle_getdata_req_msg(struct mgmt_fe_session_ctx *session,
return 0;
}
/* GETDATA must be on operational DS */
if (getdata_req->ds_id != MGMTD_DS_OPERATIONAL) {
mgmt_fe_send_getdata_reply(
session, getdata_req->ds_id, getdata_req->req_id, false,
NULL,
"Get-Data on datastore other than Operational DS not permitted!");
return 0;
}
if (session->txn_id == MGMTD_TXN_ID_NONE) {
/*
* Try taking read-lock on the requested DS (if not already
* locked). If the DS has already been write-locked by a ongoing
* CONFIG transaction we may allow reading the contents of the
* same DS.
*/
if (!session->ds_read_locked[getdata_req->ds_id]
&& !session->ds_write_locked[getdata_req->ds_id]) {
if (mgmt_fe_session_read_lock_ds(getdata_req->ds_id,
ds_ctx, session)
!= 0) {
mgmt_fe_send_getdata_reply(
session, getdata_req->ds_id,
getdata_req->req_id, false, NULL,
"Failed to lock the DS! Another session might have locked it!");
goto mgmt_fe_sess_handle_getdata_req_failed;
}
session->ds_locked_implict[getdata_req->ds_id] = true;
}
/*
* Start a SHOW Transaction (if not started already)
*/
@ -1091,9 +927,8 @@ mgmt_fe_session_handle_getdata_req_msg(struct mgmt_fe_session_ctx *session,
* Create a GETData request under the transaction.
*/
if (mgmt_txn_send_get_data_req(session->txn_id, getdata_req->req_id,
getdata_req->ds_id, ds_ctx,
getdata_req->data, getdata_req->n_data)
!= 0) {
getdata_req->ds_id, getdata_req->data,
getdata_req->n_data) != 0) {
mgmt_fe_send_getdata_reply(
session, getdata_req->ds_id, getdata_req->req_id, false,
NULL, "Request processing for GET-CONFIG failed!");
@ -1110,10 +945,6 @@ mgmt_fe_sess_handle_getdata_req_failed:
if (session->txn_id != MGMTD_TXN_ID_NONE)
mgmt_destroy_txn(&session->txn_id);
if (ds_ctx && session->ds_read_locked[getdata_req->ds_id])
mgmt_fe_session_unlock_ds(getdata_req->ds_id, ds_ctx,
session, false, true);
return -1;
}
@ -1126,43 +957,30 @@ static int mgmt_fe_session_handle_commit_config_req_msg(
if (mm->perf_stats_en)
gettimeofday(&session->adapter->cmt_stats.last_start, NULL);
session->adapter->cmt_stats.commit_cnt++;
/*
* Get the source DS handle.
*/
/* Validate source and dest DS */
if (commcfg_req->src_ds_id != MGMTD_DS_CANDIDATE ||
commcfg_req->dst_ds_id != MGMTD_DS_RUNNING) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id, commcfg_req->dst_ds_id,
commcfg_req->req_id, MGMTD_INTERNAL_ERROR,
commcfg_req->validate_only,
"Source/Dest for commit must be candidate/running DS");
return 0;
}
src_ds_ctx = mgmt_ds_get_ctx_by_id(mm, commcfg_req->src_ds_id);
if (!src_ds_ctx) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id, commcfg_req->dst_ds_id,
commcfg_req->req_id, MGMTD_INTERNAL_ERROR,
commcfg_req->validate_only,
"No such source DS exists!");
return 0;
}
/*
* Get the destination DS handle.
*/
assert(src_ds_ctx);
dst_ds_ctx = mgmt_ds_get_ctx_by_id(mm, commcfg_req->dst_ds_id);
if (!dst_ds_ctx) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id, commcfg_req->dst_ds_id,
commcfg_req->req_id, MGMTD_INTERNAL_ERROR,
commcfg_req->validate_only,
"No such destination DS exists!");
return 0;
}
assert(dst_ds_ctx);
/*
* Next check first if the COMMCFG_REQ is for running DS
* or not. Report failure if its not. MGMTD currently only
* supports editing the Candidate DS.
*/
if (commcfg_req->dst_ds_id != MGMTD_DS_RUNNING) {
/* User should have lock on both source and dest DS */
if (!session->ds_locked[commcfg_req->dst_ds_id] ||
!session->ds_locked[commcfg_req->src_ds_id]) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id, commcfg_req->dst_ds_id,
commcfg_req->req_id, MGMTD_INTERNAL_ERROR,
commcfg_req->req_id, MGMTD_DS_LOCK_FAILED,
commcfg_req->validate_only,
"Set-Config on datastores other than Running DS not permitted!");
"Commit requires lock on candidate and/or running DS");
return 0;
}
@ -1187,26 +1005,6 @@ static int mgmt_fe_session_handle_commit_config_req_msg(
session->cfg_txn_id, session->session_id);
}
/*
* Try taking write-lock on the destination DS (if not already).
*/
if (!session->ds_write_locked[commcfg_req->dst_ds_id]) {
if (mgmt_fe_session_write_lock_ds(commcfg_req->dst_ds_id,
dst_ds_ctx, session)
!= 0) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id,
commcfg_req->dst_ds_id, commcfg_req->req_id,
MGMTD_DS_LOCK_FAILED,
commcfg_req->validate_only,
"Failed to lock the destination DS!");
return 0;
}
session->ds_locked_implict[commcfg_req->dst_ds_id] = true;
}
/*
* Create COMMITConfig request under the transaction
*/
@ -1214,8 +1012,7 @@ static int mgmt_fe_session_handle_commit_config_req_msg(
session->cfg_txn_id, commcfg_req->req_id,
commcfg_req->src_ds_id, src_ds_ctx, commcfg_req->dst_ds_id,
dst_ds_ctx, commcfg_req->validate_only, commcfg_req->abort,
false)
!= 0) {
false) != 0) {
mgmt_fe_send_commitcfg_reply(
session, commcfg_req->src_ds_id, commcfg_req->dst_ds_id,
commcfg_req->req_id, MGMTD_INTERNAL_ERROR,
@ -1743,18 +1540,10 @@ void mgmt_fe_adapter_status_write(struct vty *vty, bool detail)
session->session_id);
vty_out(vty, " DS-Locks:\n");
FOREACH_MGMTD_DS_ID (ds_id) {
if (session->ds_write_locked[ds_id]
|| session->ds_read_locked[ds_id]) {
if (session->ds_locked[ds_id]) {
locked = true;
vty_out(vty,
" %s\t\t\t%s, %s\n",
mgmt_ds_id2name(ds_id),
session->ds_write_locked[ds_id]
? "Write"
: "Read",
session->ds_locked_implict[ds_id]
? "Implicit"
: "Explicit");
vty_out(vty, " %s\n",
mgmt_ds_id2name(ds_id));
}
}
if (!locked)

38
mgmtd/mgmt_history.c
View File

@ -196,23 +196,21 @@ static int mgmt_history_rollback_to_cmt(struct vty *vty,
}
src_ds_ctx = mgmt_ds_get_ctx_by_id(mm, MGMTD_DS_CANDIDATE);
if (!src_ds_ctx) {
vty_out(vty, "ERROR: Couldnot access Candidate datastore!\n");
return -1;
}
/*
* Note: Write lock on src_ds is not required. This is already
* taken in 'conf te'.
*/
dst_ds_ctx = mgmt_ds_get_ctx_by_id(mm, MGMTD_DS_RUNNING);
if (!dst_ds_ctx) {
vty_out(vty, "ERROR: Couldnot access Running datastore!\n");
assert(src_ds_ctx);
assert(dst_ds_ctx);
ret = mgmt_ds_lock(src_ds_ctx, vty->mgmt_session_id);
if (ret != 0) {
vty_out(vty,
"Failed to lock the DS %u for rollback Reason: %s!\n",
MGMTD_DS_RUNNING, strerror(ret));
return -1;
}
ret = mgmt_ds_write_lock(dst_ds_ctx);
ret = mgmt_ds_lock(dst_ds_ctx, vty->mgmt_session_id);
if (ret != 0) {
mgmt_ds_unlock(src_ds_ctx);
vty_out(vty,
"Failed to lock the DS %u for rollback Reason: %s!\n",
MGMTD_DS_RUNNING, strerror(ret));
@ -223,26 +221,29 @@ static int mgmt_history_rollback_to_cmt(struct vty *vty,
ret = mgmt_ds_load_config_from_file(
src_ds_ctx, cmt_info->cmt_json_file, false);
if (ret != 0) {
mgmt_ds_unlock(dst_ds_ctx);
vty_out(vty,
"Error with parsing the file with error code %d\n",
ret);
return ret;
goto failed_unlock;
}
}
/* Internally trigger a commit-request. */
ret = mgmt_txn_rollback_trigger_cfg_apply(src_ds_ctx, dst_ds_ctx);
if (ret != 0) {
mgmt_ds_unlock(dst_ds_ctx);
vty_out(vty,
"Error with creating commit apply txn with error code %d\n",
ret);
return ret;
goto failed_unlock;
}
mgmt_history_dump_cmt_record_index();
/*
* TODO: Cleanup: the generic TXN code currently checks for rollback
* and does the unlock when it completes.
*/
/*
* Block the rollback command from returning till the rollback
* is completed. On rollback completion mgmt_history_rollback_complete()
@ -251,6 +252,11 @@ static int mgmt_history_rollback_to_cmt(struct vty *vty,
vty->mgmt_req_pending_cmd = "ROLLBACK";
rollback_vty = vty;
return 0;
failed_unlock:
mgmt_ds_unlock(src_ds_ctx);
mgmt_ds_unlock(dst_ds_ctx);
return ret;
}
void mgmt_history_rollback_complete(bool success)

175
mgmtd/mgmt_txn.c
View File

@ -164,7 +164,7 @@ struct mgmt_get_data_reply {
struct mgmt_get_data_req {
Mgmtd__DatastoreId ds_id;
struct mgmt_ds_ctx *ds_ctx;
struct nb_config *cfg_root;
char *xpaths[MGMTD_MAX_NUM_DATA_REQ_IN_BATCH];
int num_xpaths;
@ -576,6 +576,10 @@ static void mgmt_txn_req_free(struct mgmt_txn_req **txn_req)
if ((*txn_req)->req.get_data->reply)
XFREE(MTYPE_MGMTD_TXN_GETDATA_REPLY,
(*txn_req)->req.get_data->reply);
if ((*txn_req)->req.get_data->cfg_root)
nb_config_free((*txn_req)->req.get_data->cfg_root);
XFREE(MTYPE_MGMTD_TXN_GETDATA_REQ, (*txn_req)->req.get_data);
break;
case MGMTD_TXN_PROC_GETDATA:
@ -683,18 +687,18 @@ static void mgmt_txn_process_set_cfg(struct event *thread)
assert(mgmt_txn_reqs_count(&txn->set_cfg_reqs) == 1);
assert(txn_req->req.set_cfg->dst_ds_ctx);
ret = mgmt_ds_write_lock(
txn_req->req.set_cfg->dst_ds_ctx);
if (ret != 0) {
/* We expect the user to have locked the DST DS */
if (!mgmt_ds_is_locked(txn_req->req.set_cfg->dst_ds_ctx,
txn->session_id)) {
MGMTD_TXN_ERR(
"Failed to lock DS %u txn-id: %" PRIu64
"DS %u not locked for implicit commit txn-id: %" PRIu64
" session-id: %" PRIu64 " err: %s",
txn_req->req.set_cfg->dst_ds_id,
txn->txn_id, txn->session_id,
strerror(ret));
mgmt_txn_send_commit_cfg_reply(
txn, MGMTD_DS_LOCK_FAILED,
"Lock running DS before implicit commit failed!");
"running DS not locked for implicit commit");
goto mgmt_txn_process_set_cfg_done;
}
@ -703,8 +707,8 @@ static void mgmt_txn_process_set_cfg(struct event *thread)
txn_req->req.set_cfg->ds_id,
txn_req->req.set_cfg->ds_ctx,
txn_req->req.set_cfg->dst_ds_id,
txn_req->req.set_cfg->dst_ds_ctx, false,
false, true);
txn_req->req.set_cfg->dst_ds_ctx, false, false,
true);
if (mm->perf_stats_en)
gettimeofday(&cmt_stats->last_start, NULL);
@ -746,7 +750,6 @@ static int mgmt_txn_send_commit_cfg_reply(struct mgmt_txn_ctx *txn,
enum mgmt_result result,
const char *error_if_any)
{
int ret = 0;
bool success, create_cmt_info_rec;
if (!txn->commit_cfg_req)
@ -754,7 +757,12 @@ static int mgmt_txn_send_commit_cfg_reply(struct mgmt_txn_ctx *txn,
success = (result == MGMTD_SUCCESS || result == MGMTD_NO_CFG_CHANGES);
/* TODO: these replies should not be send if it's a rollback
* b/c right now that is special cased.. that special casing should be
* removed; however...
*/
if (!txn->commit_cfg_req->req.commit_cfg.implicit && txn->session_id
&& !txn->commit_cfg_req->req.commit_cfg.rollback
&& mgmt_fe_send_commit_cfg_reply(
txn->session_id, txn->txn_id,
txn->commit_cfg_req->req.commit_cfg.src_ds_id,
@ -770,6 +778,7 @@ static int mgmt_txn_send_commit_cfg_reply(struct mgmt_txn_ctx *txn,
}
if (txn->commit_cfg_req->req.commit_cfg.implicit && txn->session_id
&& !txn->commit_cfg_req->req.commit_cfg.rollback
&& mgmt_fe_send_set_cfg_reply(
txn->session_id, txn->txn_id,
txn->commit_cfg_req->req.commit_cfg.src_ds_id,
@ -784,6 +793,7 @@ static int mgmt_txn_send_commit_cfg_reply(struct mgmt_txn_ctx *txn,
if (success) {
/* Stop the commit-timeout timer */
/* XXX why only on success? */
EVENT_OFF(txn->comm_cfg_timeout);
create_cmt_info_rec =
@ -830,27 +840,18 @@ static int mgmt_txn_send_commit_cfg_reply(struct mgmt_txn_ctx *txn,
}
if (txn->commit_cfg_req->req.commit_cfg.rollback) {
ret = mgmt_ds_unlock(
txn->commit_cfg_req->req.commit_cfg.dst_ds_ctx);
if (ret != 0)
MGMTD_TXN_ERR(
"Failed to unlock the dst DS during rollback : %s",
strerror(ret));
mgmt_ds_unlock(txn->commit_cfg_req->req.commit_cfg.src_ds_ctx);
mgmt_ds_unlock(txn->commit_cfg_req->req.commit_cfg.dst_ds_ctx);
/*
* Resume processing the rollback command.
*
* TODO: there's no good reason to special case rollback, the
* rollback boolean should be passed back to the FE client and it
* can do the right thing.
*/
mgmt_history_rollback_complete(success);
}
if (txn->commit_cfg_req->req.commit_cfg.implicit)
if (mgmt_ds_unlock(
txn->commit_cfg_req->req.commit_cfg.dst_ds_ctx)
!= 0)
MGMTD_TXN_ERR(
"Failed to unlock the dst DS during implicit : %s",
strerror(ret));
txn->commit_cfg_req->req.commit_cfg.cmt_stats = NULL;
mgmt_txn_req_free(&txn->commit_cfg_req);
@ -1724,8 +1725,7 @@ static void mgmt_txn_send_getcfg_reply_data(struct mgmt_txn_req *txn_req,
mgmt_reset_get_data_reply_buf(get_req);
}
static void mgmt_txn_iter_and_send_get_cfg_reply(struct mgmt_ds_ctx *ds_ctx,
const char *xpath,
static void mgmt_txn_iter_and_send_get_cfg_reply(const char *xpath,
struct lyd_node *node,
struct nb_node *nb_node,
void *ctx)
@ -1770,7 +1770,7 @@ static void mgmt_txn_iter_and_send_get_cfg_reply(struct mgmt_ds_ctx *ds_ctx,
static int mgmt_txn_get_config(struct mgmt_txn_ctx *txn,
struct mgmt_txn_req *txn_req,
struct mgmt_ds_ctx *ds_ctx)
struct nb_config *root)
{
int indx;
struct mgmt_get_data_req *get_data;
@ -1805,7 +1805,8 @@ static int mgmt_txn_get_config(struct mgmt_txn_ctx *txn,
* want to also use an xpath regexp we need to add this
* functionality.
*/
if (mgmt_ds_iter_data(get_data->ds_ctx, get_data->xpaths[indx],
if (mgmt_ds_iter_data(get_data->ds_id, root,
get_data->xpaths[indx],
mgmt_txn_iter_and_send_get_cfg_reply,
(void *)txn_req) == -1) {
MGMTD_TXN_DBG("Invalid Xpath '%s",
@ -1837,7 +1838,7 @@ static void mgmt_txn_process_get_cfg(struct event *thread)
{
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
struct mgmt_ds_ctx *ds_ctx;
struct nb_config *cfg_root;
int num_processed = 0;
bool error;
@ -1852,18 +1853,10 @@ static void mgmt_txn_process_get_cfg(struct event *thread)
FOREACH_TXN_REQ_IN_LIST (&txn->get_cfg_reqs, txn_req) {
error = false;
assert(txn_req->req_event == MGMTD_TXN_PROC_GETCFG);
ds_ctx = txn_req->req.get_data->ds_ctx;
if (!ds_ctx) {
mgmt_fe_send_get_cfg_reply(
txn->session_id, txn->txn_id,
txn_req->req.get_data->ds_id, txn_req->req_id,
MGMTD_INTERNAL_ERROR, NULL,
"No such datastore!");
error = true;
goto mgmt_txn_process_get_cfg_done;
}
cfg_root = txn_req->req.get_data->cfg_root;
assert(cfg_root);
if (mgmt_txn_get_config(txn, txn_req, ds_ctx) != 0) {
if (mgmt_txn_get_config(txn, txn_req, cfg_root) != 0) {
MGMTD_TXN_ERR(
"Unable to retrieve config from DS %d txn-id: %" PRIu64
" session-id: %" PRIu64 " req-id: %" PRIu64,
@ -1872,8 +1865,6 @@ static void mgmt_txn_process_get_cfg(struct event *thread)
error = true;
}
mgmt_txn_process_get_cfg_done:
if (error) {
/*
* Delete the txn request.
@ -1904,9 +1895,7 @@ static void mgmt_txn_process_get_data(struct event *thread)
{
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
struct mgmt_ds_ctx *ds_ctx;
int num_processed = 0;
bool error;
txn = (struct mgmt_txn_ctx *)EVENT_ARG(thread);
assert(txn);
@ -1917,54 +1906,23 @@ static void mgmt_txn_process_get_data(struct event *thread)
txn->session_id);
FOREACH_TXN_REQ_IN_LIST (&txn->get_data_reqs, txn_req) {
error = false;
assert(txn_req->req_event == MGMTD_TXN_PROC_GETDATA);
ds_ctx = txn_req->req.get_data->ds_ctx;
if (!ds_ctx) {
mgmt_fe_send_get_data_reply(
txn->session_id, txn->txn_id,
txn_req->req.get_data->ds_id, txn_req->req_id,
MGMTD_INTERNAL_ERROR, NULL,
"No such datastore!");
error = true;
goto mgmt_txn_process_get_data_done;
}
if (mgmt_ds_is_config(ds_ctx)) {
if (mgmt_txn_get_config(txn, txn_req, ds_ctx)
!= 0) {
MGMTD_TXN_ERR(
"Unable to retrieve config from DS %d txn-id %" PRIu64
" session-id: %" PRIu64
" req-id: %" PRIu64,
txn_req->req.get_data->ds_id,
txn->txn_id, txn->session_id,
txn_req->req_id);
error = true;
}
} else {
/*
* TODO: Trigger GET procedures for Backend
* For now return back error.
*/
mgmt_fe_send_get_data_reply(
txn->session_id, txn->txn_id,
txn_req->req.get_data->ds_id, txn_req->req_id,
MGMTD_INTERNAL_ERROR, NULL,
"GET-DATA on Oper DS is not supported yet!");
error = true;
}
mgmt_txn_process_get_data_done:
if (error) {
/*
* Delete the txn request.
* Note: The following will remove it from the list
* as well.
*/
mgmt_txn_req_free(&txn_req);
}
/*
* TODO: Trigger GET procedures for Backend
* For now return back error.
*/
mgmt_fe_send_get_data_reply(
txn->session_id, txn->txn_id,
txn_req->req.get_data->ds_id, txn_req->req_id,
MGMTD_INTERNAL_ERROR, NULL,
"GET-DATA on Oper DS is not supported yet!");
/*
* Delete the txn request.
* Note: The following will remove it from the list
* as well.
*/
mgmt_txn_req_free(&txn_req);
/*
* Else the transaction would have been already deleted or
@ -2344,12 +2302,12 @@ int mgmt_txn_send_set_config_req(uint64_t txn_id, uint64_t req_id,
}
int mgmt_txn_send_commit_config_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId src_ds_id,
struct mgmt_ds_ctx *src_ds_ctx,
Mgmtd__DatastoreId dst_ds_id,
struct mgmt_ds_ctx *dst_ds_ctx,
bool validate_only, bool abort,
bool implicit)
Mgmtd__DatastoreId src_ds_id,
struct mgmt_ds_ctx *src_ds_ctx,
Mgmtd__DatastoreId dst_ds_id,
struct mgmt_ds_ctx *dst_ds_ctx,
bool validate_only, bool abort,
bool implicit)
{
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
@ -2395,9 +2353,8 @@ int mgmt_txn_notify_be_adapter_conn(struct mgmt_be_client_adapter *adapter,
memset(&dummy_stats, 0, sizeof(dummy_stats));
if (connect) {
/* Get config for this single backend client */
mgmt_be_get_adapter_config(adapter, mm->running_ds,
&adapter_cfgs);
mgmt_be_get_adapter_config(adapter, &adapter_cfgs);
if (!adapter_cfgs || RB_EMPTY(nb_config_cbs, adapter_cfgs)) {
SET_FLAG(adapter->flags,
MGMTD_BE_ADAPTER_FLAGS_CFG_SYNCED);
@ -2619,10 +2576,10 @@ int mgmt_txn_notify_be_cfg_apply_reply(uint64_t txn_id, bool success,
}
int mgmt_txn_send_get_config_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs)
Mgmtd__DatastoreId ds_id,
struct nb_config *cfg_root,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs)
{
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
@ -2634,7 +2591,7 @@ int mgmt_txn_send_get_config_req(uint64_t txn_id, uint64_t req_id,
txn_req = mgmt_txn_req_alloc(txn, req_id, MGMTD_TXN_PROC_GETCFG);
txn_req->req.get_data->ds_id = ds_id;
txn_req->req.get_data->ds_ctx = ds_ctx;
txn_req->req.get_data->cfg_root = cfg_root;
for (indx = 0;
indx < num_reqs && indx < MGMTD_MAX_NUM_DATA_REPLY_IN_BATCH;
indx++) {
@ -2650,10 +2607,9 @@ int mgmt_txn_send_get_config_req(uint64_t txn_id, uint64_t req_id,
}
int mgmt_txn_send_get_data_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs)
Mgmtd__DatastoreId ds_id,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs)
{
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
@ -2665,7 +2621,7 @@ int mgmt_txn_send_get_data_req(uint64_t txn_id, uint64_t req_id,
txn_req = mgmt_txn_req_alloc(txn, req_id, MGMTD_TXN_PROC_GETDATA);
txn_req->req.get_data->ds_id = ds_id;
txn_req->req.get_data->ds_ctx = ds_ctx;
txn_req->req.get_data->cfg_root = NULL;
for (indx = 0;
indx < num_reqs && indx < MGMTD_MAX_NUM_DATA_REPLY_IN_BATCH;
indx++) {
@ -2703,10 +2659,11 @@ int mgmt_txn_rollback_trigger_cfg_apply(struct mgmt_ds_ctx *src_ds_ctx,
struct mgmt_ds_ctx *dst_ds_ctx)
{
static struct nb_config_cbs changes;
static struct mgmt_commit_stats dummy_stats;
struct nb_config_cbs *cfg_chgs = NULL;
struct mgmt_txn_ctx *txn;
struct mgmt_txn_req *txn_req;
static struct mgmt_commit_stats dummy_stats;
memset(&changes, 0, sizeof(changes));
memset(&dummy_stats, 0, sizeof(dummy_stats));

21
mgmtd/mgmt_txn.h
View File

@ -169,12 +169,12 @@ extern int mgmt_txn_send_set_config_req(uint64_t txn_id, uint64_t req_id,
* 0 on success, -1 on failures.
*/
extern int mgmt_txn_send_commit_config_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId src_ds_id,
struct mgmt_ds_ctx *dst_ds_ctx,
Mgmtd__DatastoreId dst_ds_id,
struct mgmt_ds_ctx *src_ds_ctx,
bool validate_only, bool abort,
bool implicit);
Mgmtd__DatastoreId src_ds_id,
struct mgmt_ds_ctx *dst_ds_ctx,
Mgmtd__DatastoreId dst_ds_id,
struct mgmt_ds_ctx *src_ds_ctx,
bool validate_only, bool abort,
bool implicit);
/*
* Send get-config request to be processed later in transaction.
@ -182,10 +182,10 @@ extern int mgmt_txn_send_commit_config_req(uint64_t txn_id, uint64_t req_id,
* Similar to set-config request.
*/
extern int mgmt_txn_send_get_config_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs);
Mgmtd__DatastoreId ds_id,
struct nb_config *cfg_root,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs);
/*
* Send get-data request to be processed later in transaction.
@ -194,7 +194,6 @@ extern int mgmt_txn_send_get_config_req(uint64_t txn_id, uint64_t req_id,
*/
extern int mgmt_txn_send_get_data_req(uint64_t txn_id, uint64_t req_id,
Mgmtd__DatastoreId ds_id,
struct mgmt_ds_ctx *ds_ctx,
Mgmtd__YangGetDataReq **data_req,
size_t num_reqs);

2
tests/lib/test_grpc.cpp
View File

@ -114,7 +114,7 @@ static void static_startup(void)
// Add a route
vty = vty_new();
vty->type = vty::VTY_TERM;
vty_config_enter(vty, true, false);
vty_config_enter(vty, true, false, false);
auto ret = cmd_execute(vty, "ip route 11.0.0.0/8 Null0", NULL, 0);
assert(!ret);

5
vtysh/vtysh.c
View File

@ -2333,8 +2333,9 @@ DEFUNSH(VTYSH_REALLYALL, vtysh_disable, vtysh_disable_cmd, "disable",
}
DEFUNSH(VTYSH_REALLYALL, vtysh_config_terminal, vtysh_config_terminal_cmd,
"configure [terminal]",
"configure [terminal [file-lock]]",
"Configuration from vty interface\n"
"Configuration with locked datastores\n"
"Configuration terminal\n")
{
vty->node = CONFIG_NODE;
@ -2355,7 +2356,7 @@ static int vtysh_exit(struct vty *vty)
if (vty->node == CONFIG_NODE) {
/* resync in case one of the daemons is somewhere else */
vtysh_execute("end");
vtysh_execute("configure");
vtysh_execute("configure terminal file-lock");
}
return CMD_SUCCESS;
}

2
vtysh/vtysh_config.c
View File

@ -607,7 +607,7 @@ static int vtysh_read_file(FILE *confp, bool dry_run)
vty->node = CONFIG_NODE;
vtysh_execute_no_pager("enable");
vtysh_execute_no_pager("configure terminal");
vtysh_execute_no_pager("configure terminal file-lock");
if (!dry_run)
vtysh_execute_no_pager("XFRR_start_configuration");