/*
* Perform operation on all targets
*/
static int
isns_op_all(uint16_t op)
{
int so;
tgt_node_t *tgt = NULL;
char *iname;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_op_all: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
if ((so = isns_open(isns_args.server)) == -1) {
syslog(LOG_ERR, "isns_op_all: failed to open isns server %s",
isns_args.server);
return (-1);
}
while ((tgt = tgt_node_next_child(targets_config, XML_ELEMENT_TARG,
tgt)) != NULL) {
if (tgt_find_value_str(tgt, XML_ELEMENT_INAME, &iname)
== FALSE) {
continue;
}
switch (op) {
case ISNS_DEV_DEREG:
if (isns_dev_attr_dereg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS de-register failed\n");
}
num_reg = 0;
break;
case ISNS_SCN_DEREG:
if (isns_scn_dereg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS SCN de-register failed\n");
}
break;
case ISNS_SCN_REG:
if (isns_scn_reg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS SCN register failed\n");
}
break;
case ISNS_TGT_LOGOUT:
logout_targ(iname);
break;
default:
break;
}
free(iname);
}
isns_close(so);
return (0);
}
/*
* []----
* | validate_isns_server -- validate that server[:port] are valid
* []----
*/
char *
valid_isns_srv(char *name, char *prop)
{
char *msg = NULL;
char *sp, *p;
int so;
int port;
if (strlen(prop) > MAXHOSTNAMELEN) {
xml_rtn_msg(&msg, ERR_INVALID_ISNS_SRV);
return (msg);
}
if ((sp = strdup(prop)) == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
return (msg);
}
if ((p = strrchr(sp, ':')) != NULL) {
*p++ = '\0';
port = atoi(p);
if ((port < 1) || (port > 65535)) {
xml_rtn_msg(&msg, ERR_INVALID_ISNS_SRV);
free(sp);
return (msg);
}
}
so = isns_open(sp);
if (so < 0) {
if (isns_enabled() == True) {
xml_rtn_msg(&msg, ERR_INVALID_ISNS_SRV);
} else { /* Just print a warning and accept the server */
syslog(LOG_ALERT,
"Check if the server:%s is valid", sp);
}
} else {
isns_close(so);
}
free(sp);
return (msg);
}
/*
* isns_reg is called to register new target
*/
int
isns_reg(char *targ)
{
int so;
tgt_node_t *tgt;
char *iqn = NULL;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_reg: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
if ((so = isns_open(isns_args.server)) == -1) {
syslog(LOG_ERR, "isns_reg failed with server: %s",
isns_args.server);
return (-1);
}
/*
* Open targets_config and devAttrReg all nodes
*/
if ((tgt = find_tgt_by_name(targ, &iqn)) != NULL) {
if (isns_dev_attr_reg(so, tgt, iqn, tgt->x_value) != 0) {
syslog(LOG_ALERT, "ISNS registration failed %s\n",
tgt->x_value);
goto error;
}
if (isns_scn_reg(so, iqn) == -1) {
syslog(LOG_ERR, "ISNS SCN register failed\n");
}
}
error:
if (iqn)
free(iqn);
isns_close(so);
return (0);
}
/*
* Deregister an iscsi target node
*/
int
isns_dereg(char *name)
{
int so;
int ret;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_dereg: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
if ((so = isns_open(isns_args.server)) == -1) {
return (-1);
}
ret = isns_dev_attr_dereg(so, name);
isns_close(so);
return (ret);
}
/*
* Query an iscsi initiator node
*/
Boolean_t
isns_qry_initiator(char *target, char *initiator)
{
int so;
int ret;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_qry_initiator: iSNS discovery is not running"
" Check the previous iSNS initialization error.");
return (-1);
}
if ((so = isns_open(isns_args.server)) == -1) {
syslog(LOG_ERR, "isns_qry failed");
return (-1);
}
ret = isns_dev_attr_qry(so, target, initiator);
isns_close(so);
return (ret == 1 ? True : False);
}
static int
is_isns_server_up(char *server) {
int so;
socklen_t len;
struct sockaddr sa;
/* no server specified */
if (server == NULL) {
return (-1);
}
/*
* open isns server connect and determine which PF_INET to use
*/
if ((so = isns_open(server)) < 0) {
syslog(LOG_ERR,
"isns server %s not found",
server);
return (-1);
}
len = sizeof (sa);
if (getsockname(so, &sa, &len) < 0) {
isns_close(so);
syslog(LOG_ALERT,
"isns getsockname failed");
return (-1);
}
isns_close(so);
if (sa.sa_family != PF_INET &&
sa.sa_family != PF_INET6) {
syslog(LOG_ERR,
"isns unknown domain type");
return (-1);
}
return (0);
}
/*
* Update an existing iscsi target property
*/
int
isns_dev_update(char *targ, uint32_t mods)
{
int so;
int flags = 0; /* update only */
char *iname = NULL;
char *dummy = NULL;
char alias[MAXNAMELEN];
tgt_node_t *tgt = NULL;
isns_pdu_t *cmd;
isns_rsp_t *rsp;
int ret = -1;
if (mods == 0)
return (0);
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_dev_update: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
if ((tgt = find_tgt_by_name(targ, &iname)) != NULL) {
if (tgt_find_value_str(tgt, XML_ELEMENT_ALIAS, &dummy) ==
True) {
(void) strcpy(alias, dummy);
free(dummy);
} else
(void) strcpy(alias, tgt->x_value);
if ((so = isns_open(isns_args.server)) < 0) {
goto error;
}
if (isns_create_pdu(ISNS_DEV_ATTR_REG, flags, &cmd)) {
goto error;
}
/* source attr, msg key, delimiter */
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(iname), iname, 0) != 0) {
goto error;
}
if (isns_append_attr(cmd, ISNS_EID_ATTR_ID,
STRLEN(isns_args.entity), isns_args.entity, 0) != 0) {
goto error;
}
if (isns_append_attr(cmd, ISNS_DELIMITER_ATTR_ID, 0, NULL, 0)
!= 0) {
goto error;
}
/*
* get current operating attributes, alias & portal group
* objects, these should be the only things that get change
*/
(void) isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(iname), iname, 0);
(void) isns_append_attr(cmd, ISNS_ISCSI_NODE_TYPE_ATTR_ID,
ISNS_NODE_TYP_SZ, NULL, ISNS_TARGET_NODE_TYPE);
if (mods & ISNS_MOD_ALIAS)
if (isns_append_attr(cmd, ISNS_ISCSI_ALIAS_ATTR_ID,
STRLEN(alias), alias, 0) != 0) {
goto error;
}
if (mods & ISNS_MOD_TPGT)
if (append_tpgt(tgt, cmd) != 0) {
goto error;
}
if (isns_send(so, (isns_pdu_t *)cmd) < 0) {
goto error;
}
if (isns_recv(so, &rsp) == -1) {
goto error;
}
/* process response, if failed do a isns_reg_all */
if ((ret = process_rsp(cmd, rsp)) == -1) {
if (isns_reg_all() != 0 || isns_scn_reg_all() != 0) {
syslog(LOG_ALERT, "ISNS register failed\n");
goto error;
}
ret = 0;
} else {
if (isns_scn_reg(so, iname) == -1) {
syslog(LOG_ERR, "ISNS SCN register failed\n");
goto error;
}
ret = 0;
}
} else {
syslog(LOG_ERR, "ISNS: fails to update target %s\n", alias);
}
error:
if (cmd)
isns_free_pdu(cmd);
if (rsp)
isns_free_pdu(rsp);
if (iname)
free(iname);
isns_close(so);
return (ret);
}
/*
* Register all iscsi target nodes from the XML database
* Alway use the ISNS_FLAG_REPLACE_REG flag
*/
int
isns_reg_all()
{
int so;
uint32_t flags = ISNS_FLAG_REPLACE_REG;
isns_pdu_t *cmd = NULL;
isns_rsp_t *rsp = NULL;
char *n = NULL;
char *a = NULL;
char alias[MAXNAMELEN];
char iname[MAXNAMELEN];
tgt_node_t *tgt = NULL;
int ret = -1;
int tgt_cnt = 0;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_reg_all: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
/*
* get the 1st target and use it for the source attribute
*/
if ((tgt = tgt_node_next_child(targets_config, XML_ELEMENT_TARG, tgt))
== NULL) {
return (0);
}
if (tgt->x_value == NULL) {
syslog(LOG_ALERT, "ISNS: target with NULL local name\n");
return (-1);
}
if (tgt_find_value_str(tgt, XML_ELEMENT_INAME, &n)
== FALSE) {
syslog(LOG_ALERT, "ISNS: no XML_ELEMENT_INAME found\n");
return (-1);
}
(void) strcpy(iname, n);
free(n);
if ((so = isns_open(isns_args.server)) == -1) {
syslog(LOG_ALERT, "ISNS: fails to connect to %s\n",
isns_args.server);
return (-1);
}
if (isns_create_pdu(ISNS_DEV_ATTR_REG, flags, &cmd) != 0) {
goto error;
}
/* source attribute */
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(iname), iname, 0) != 0) {
goto error;
}
/* add message key attribute */
if (isns_append_attr(cmd, ISNS_EID_ATTR_ID,
STRLEN(isns_args.entity), isns_args.entity, 0) != 0) {
goto error;
}
/* add delimiter */
if (isns_append_attr(cmd, ISNS_DELIMITER_ATTR_ID, 0, NULL, 0) != 0) {
goto error;
}
/* entity id */
if (isns_append_attr(cmd, ISNS_EID_ATTR_ID,
STRLEN(isns_args.entity), isns_args.entity, 0) != 0) {
goto error;
}
/* entity type */
if (isns_append_attr(cmd, ISNS_ENTITY_PROTOCOL_ATTR_ID,
ISNS_ENTITY_TYP_SZ, NULL, ISNS_ENTITY_PROTOCOL_ISCSI) != 0) {
goto error;
}
/* portal ip-addr */
if (isns_append_attr(cmd, ISNS_PORTAL_IP_ADDR_ATTR_ID,
eid_ip.ai_addrlen, (void *)&eid_ip.ip_adr,
eid_ip.ip_len) != 0) {
goto error;
}
/* portal port */
if (isns_append_attr(cmd, ISNS_PORTAL_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, iscsi_port) != 0) {
goto error;
}
/* ESI interval */
if (isns_append_attr(cmd, ISNS_ESI_INTERVAL_ATTR_ID,
ISNS_ESI_TICK_SZ, NULL, 10) != 0) {
goto error;
}
/* scn port */
if (isns_append_attr(cmd, ISNS_SCN_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, scn_port) != 0) {
goto error;
}
/* esi port */
if (isns_append_attr(cmd, ISNS_ESI_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, scn_port) != 0) {
goto error;
}
/*
* Open targets_config and devAttrReg all nodes
*/
tgt = NULL;
while ((tgt = tgt_node_next_child(targets_config, XML_ELEMENT_TARG,
tgt)) != NULL) {
if (tgt->x_value == NULL) {
syslog(LOG_ALERT, "ISNS: target with NULL name\n");
continue;
}
/* use this value as alias if alias is not set */
(void) strcpy(alias, tgt->x_value);
if (tgt_find_value_str(tgt, XML_ELEMENT_INAME, &n)
== FALSE) {
continue;
}
(void) strcpy(iname, n);
free(n);
/* find alias */
if (tgt_find_value_str(tgt, XML_ELEMENT_ALIAS, &a)
== TRUE) {
(void) strcpy(alias, a);
free(a);
}
tgt_cnt++; /* increment target count */
/* operation attributes */
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(iname), iname, 0) != 0) {
goto error;
}
if (isns_append_attr(cmd, ISNS_ISCSI_NODE_TYPE_ATTR_ID,
4, NULL, ISNS_TARGET_NODE_TYPE) != 0) {
goto error;
}
if (isns_append_attr(cmd, ISNS_ISCSI_ALIAS_ATTR_ID,
STRLEN(alias), alias, 0) != 0) {
goto error;
}
if (append_tpgt(tgt, cmd) != 0) {
goto error;
}
}
/* send pdu */
if (isns_send(so, cmd) == -1) {
goto error;
}
/* get isns response */
if (isns_recv(so, &rsp) == -1) {
goto error;
}
/* process response */
if (process_rsp(cmd, rsp) == 0) {
ret = 0;
num_reg = tgt_cnt;
queue_prt(mgmtq, Q_ISNS_DBG, "DevAttrRegAll successful");
} else {
syslog(LOG_ALERT, "DevAttrReg failed");
}
error:
if (cmd)
isns_free_pdu(cmd);
if (rsp)
isns_free_pdu(rsp);
isns_close(so);
return (ret);
}
/*
* Register a new node, need to find another node that is already registered
* DevAttrReg
* RFC 4171 Section 5.6.5.5 indicated SCN-port-tag (23) needed to be
* included in the registration
* Also need to register ESI-port-tag (20) see Section 6.3.5
*/
static int
isns_dev_attr_reg(int so, tgt_node_t *tgt, char *node, char *alias)
{
isns_pdu_t *cmd = NULL;
isns_rsp_t *rsp = NULL;
uint32_t flags = 0;
int ret = 0;
Boolean_t found = False;
tgt_node_t *src = NULL;
char *src_nm = NULL;
queue_prt(mgmtq, Q_ISNS_DBG, "ISNS_DEV_ATTR_REG");
if ((so = isns_open(isns_args.server)) == -1) {
return (-1);
}
if (num_reg == 0) {
flags |= ISNS_FLAG_REPLACE_REG;
}
if (isns_create_pdu(ISNS_DEV_ATTR_REG, flags, &cmd) != 0) {
return (-1);
}
if (num_reg == 0) {
/* add new node to source attribute */
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(node), node, 0) != 0) {
goto error;
}
} else {
/* find a registered node to use */
do {
src = find_next_tgt(src, &src_nm);
if (src == NULL) {
syslog(LOG_ALERT, "ISNS out of sync\n");
goto error;
}
if (tgt == src) {
free(src_nm);
src_nm = NULL;
continue;
} else {
found = True;
}
} while (found == False);
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(src_nm), src_nm, 0) != 0) {
goto error;
}
}
/* add message key attribute */
if (isns_append_attr(cmd, ISNS_EID_ATTR_ID,
STRLEN(isns_args.entity), isns_args.entity, 0) != 0) {
goto error;
}
/* add delimiter */
if (isns_append_attr(cmd, ISNS_DELIMITER_ATTR_ID, 0, NULL, 0) != 0) {
goto error;
}
/* add operation attributes */
/* entity id */
if (isns_append_attr(cmd, ISNS_EID_ATTR_ID,
STRLEN(isns_args.entity), isns_args.entity, 0) != 0) {
goto error;
}
/* entity type */
if (isns_append_attr(cmd, ISNS_ENTITY_PROTOCOL_ATTR_ID,
ISNS_ENTITY_TYP_SZ, NULL, ISNS_ENTITY_PROTOCOL_ISCSI) != 0) {
goto error;
}
/*
* Register entity portal properties the 1st time
*/
if (num_reg == 0) {
/* portal ip-addr */
if (isns_append_attr(cmd, ISNS_PORTAL_IP_ADDR_ATTR_ID,
eid_ip.ai_addrlen, (void *)&eid_ip.ip_adr,
eid_ip.ip_len) != 0) {
goto error;
}
/* portal port */
if (isns_append_attr(cmd, ISNS_PORTAL_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, iscsi_port) != 0) {
goto error;
}
/* ESI interval */
if (isns_append_attr(cmd, ISNS_ESI_INTERVAL_ATTR_ID,
ISNS_ESI_TICK_SZ, NULL, 10) != 0) {
goto error;
}
/* scn port */
if (isns_append_attr(cmd, ISNS_SCN_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, scn_port) != 0) {
goto error;
}
/* esi port */
if (isns_append_attr(cmd, ISNS_ESI_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, scn_port) != 0) {
goto error;
}
}
/* iscsi node name */
if (isns_append_attr(cmd, ISNS_ISCSI_NAME_ATTR_ID,
STRLEN(node), node, 0) != 0) {
goto error;
}
/* iscsi node type */
if (isns_append_attr(cmd, ISNS_ISCSI_NODE_TYPE_ATTR_ID,
ISNS_NODE_TYP_SZ, NULL, ISNS_TARGET_NODE_TYPE) != 0) {
goto error;
}
/* iscsi node alias */
if (isns_append_attr(cmd, ISNS_ISCSI_ALIAS_ATTR_ID,
STRLEN(alias), alias, 0) != 0) {
goto error;
}
/* PGT */
if (append_tpgt(tgt, cmd) != 0) {
goto error;
}
/* send pdu */
if (isns_send(so, cmd) == -1) {
goto error;
}
/* get isns response */
if (isns_recv(so, &rsp) == -1) {
goto error;
}
/* process response */
if ((ret = process_rsp(cmd, rsp)) == 0) {
num_reg++;
}
error:
/* Free all resouces here */
if (cmd)
isns_free_pdu(cmd);
if (rsp)
isns_free_pdu(rsp);
if (src_nm)
free(src_nm);
return (ret);
}
