/*
* convert_to_tpgt -- return a TPGT based on the target address
*
* If a target doesn't have a TPGT list then just return the default
* value of 1. Otherwise determine which TPGT the target address is
* part of and find that TPGT value in the list of TPGTs this target
* is willing to expose. If the TPGT value is not found in the list
* return zero which will break the connection.
*/
static int
convert_to_tpgt(iscsi_conn_t *c, tgt_node_t *targ)
{
tgt_node_t *list;
tgt_node_t *tpgt = NULL;
int addr_tpgt, pos_tpgt;
/*
* If this target doesn't have a list of target portal group tags
* just return the default which is 1.
*/
list = tgt_node_next(targ, XML_ELEMENT_TPGTLIST, NULL);
if (list == NULL)
return (1);
/*
* If we don't find our IP in the general configuration list
* we'll use the default value which is 1 according to RFC3720.
*/
addr_tpgt = find_main_tpgt(&(c->c_target_sockaddr));
while ((tpgt = tgt_node_next(list, XML_ELEMENT_TPGT, tpgt)) != NULL) {
(void) tgt_find_value_int(tpgt, XML_ELEMENT_TPGT, &pos_tpgt);
if (pos_tpgt == addr_tpgt) {
return (addr_tpgt);
}
}
return (0);
}
/*
* []----
* | convert_local_tpgt -- Convert a local tpgt name to real addresses
* |
* | To simplify the configuration files targets only have a target portal
* | group tag string(s) associated. In the main configuration file there's
* | a tpgt element which has one or more ip-address elements. So the tag
* | is located and the actual data is inserted into the outgoing stream.
* []----
*/
static Boolean_t
convert_local_tpgt(char **text, int *text_length, char *local_tpgt)
{
tgt_node_t *tpgt = NULL;
tgt_node_t *x;
char buf[80];
char ipaddr[4];
while ((tpgt = tgt_node_next_child(main_config, XML_ELEMENT_TPGT,
tpgt)) != NULL) {
if (strcmp(tpgt->x_value, local_tpgt) == 0) {
/*
* The only children of the tpgt element are
* ip-address elements. The value of each element is
* the string we need to use. So, we don't need to
* check the node's name to see if this is correct or
* not.
*/
if ((tpgt = tgt_node_next(tpgt, XML_ELEMENT_IPADDRLIST,
NULL)) == NULL) {
return (False);
}
x = NULL;
while ((x = tgt_node_next(tpgt, XML_ELEMENT_IPADDR, x))
!= NULL) {
if (inet_pton(AF_INET, x->x_value, &ipaddr)
== 1) {
/*
* Valid IPv4 address
*/
(void) snprintf(buf, sizeof (buf),
"%s,%s", x->x_value, local_tpgt);
} else {
/*
* Invalid IPv4 address
* try with brackets (RFC2732)
*/
(void) snprintf(buf, sizeof (buf),
"[%s],%s", x->x_value, local_tpgt);
}
(void) add_text(text, text_length,
"TargetAddress", buf);
}
break;
}
}
return (True);
}
/*
* []----
* | find_main_tpgt -- Looks up the IP address and finds a match TPGT
* |
* | If no TPGT for this address exists the routine returns 0 which
* | is an illegal TPGT value.
* []----
*/
static int
find_main_tpgt(struct sockaddr_storage *pst)
{
char ip_addr[16];
tgt_node_t *tpgt = NULL;
tgt_node_t *ip_node = NULL;
struct in_addr addr;
struct in6_addr addr6;
/*
* Hardly can you believe that such struct-to-struct
* assignment IS valid.
*/
addr = ((struct sockaddr_in *)pst)->sin_addr;
addr6 = ((struct sockaddr_in6 *)pst)->sin6_addr;
while ((tpgt = tgt_node_next(main_config, XML_ELEMENT_TPGT,
tpgt)) != NULL) {
ip_node = NULL;
while ((ip_node = tgt_node_next(tpgt, XML_ELEMENT_IPADDR,
ip_node)) != NULL) {
if (pst->ss_family == AF_INET) {
if (inet_pton(AF_INET, ip_node->x_value,
ip_addr) != 1) {
continue;
}
if (bcmp(ip_addr, &addr,
sizeof (struct in_addr)) == 0) {
return (atoi(tpgt->x_value));
}
} else if (pst->ss_family == AF_INET6) {
if (inet_pton(AF_INET6, ip_node->x_value,
ip_addr) != 1) {
continue;
}
if (bcmp(ip_addr, &addr6,
sizeof (struct in6_addr)) == 0) {
return (atoi(tpgt->x_value));
}
}
}
}
return (0);
}
static char *
remove_initiator(tgt_node_t *x)
{
char *msg = NULL;
char *name;
tgt_node_t *node = NULL;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &name) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
while ((node = tgt_node_next(main_config, XML_ELEMENT_INIT, node)) !=
NULL) {
if (strcmp(node->x_value, name) == 0)
break;
}
free(name);
if (node == NULL) {
xml_rtn_msg(&msg, ERR_INIT_NOT_FOUND);
return (msg);
}
if (tgt_find_value_str(x, XML_ELEMENT_ALL, &name) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_ALL);
return (msg);
}
(void) tgt_node_remove(main_config, node, MatchBoth);
if (mgmt_config_save2scf() == True)
xml_rtn_msg(&msg, ERR_SUCCESS);
return (msg);
}
static Boolean_t
connection_parameters_get(iscsi_conn_t *c, char *targ_name)
{
tgt_node_t *targ, *alias;
Boolean_t rval = False;
if ((targ = find_target_node(targ_name)) != NULL) {
if (check_access(targ, c->c_sess->s_i_name, False) == False)
return (False);
/*
* Have a valid node for our target. Start looking
* for connection oriented parameters.
*/
if ((c->c_tpgt = convert_to_tpgt(c, targ)) == 0)
return (False);
if ((alias = tgt_node_next(targ, XML_ELEMENT_ALIAS, NULL)) ==
NULL) {
(void) tgt_find_value_str(targ, XML_ELEMENT_TARG,
&c->c_targ_alias);
} else {
(void) tgt_find_value_str(alias, XML_ELEMENT_ALIAS,
&c->c_targ_alias);
}
(void) tgt_find_value_int(targ, XML_ELEMENT_MAXCMDS,
&c->c_maxcmdsn);
rval = True;
}
return (rval);
}
tgt_node_t *
tgt_node_next(tgt_node_t *n, char *name, tgt_node_t *cur)
{
tgt_node_t *x;
tgt_node_t *p;
if (n == NULL)
return (NULL);
if (cur != NULL) {
for (x = cur->x_sibling; x; x = x->x_sibling)
if (strcmp(x->x_name, name) == 0)
return (x);
return (NULL);
}
if (n->x_name == NULL)
return (NULL);
if (strcmp(n->x_name, name) == 0)
return (n);
for (x = n->x_child; x; x = x->x_sibling)
if ((p = tgt_node_next(x, name, 0)) != NULL)
return (p);
return (NULL);
}
/*
* []----
* | add_targets -- add TargetName and TargetAddress to text argument
* |
* | Add targets which this initiator is allowed to see based on
* | the access_list associated with a target. If a target doesn't
* | have an access list then let everyone see it.
* []----
*/
static Boolean_t
add_targets(iscsi_conn_t *c, char **text, int *text_length)
{
tgt_node_t *targ = NULL;
Boolean_t rval = True;
char *targ_name = NULL;
while ((rval == True) && ((targ = tgt_node_next(targets_config,
XML_ELEMENT_TARG, targ)) != NULL)) {
if (check_access(targ, c->c_sess->s_i_name, False) == True) {
if (tgt_find_value_str(targ, XML_ELEMENT_INAME,
&targ_name) == False) {
rval = False;
break;
}
queue_prt(c->c_mgmtq, Q_CONN_LOGIN,
"CON%x %24s = %s\n", c->c_num, "TargetName",
targ_name);
(void) add_text(text, text_length, "TargetName",
targ_name);
free(targ_name);
add_target_address(c, text, text_length, targ);
}
}
return (rval);
}
/*
* []----
* | add_target_address -- find and add any target address information
* []----
*/
static void
add_target_address(iscsi_conn_t *c, char **text, int *text_length,
tgt_node_t *targ)
{
tgt_node_t *tpgt_list;
tgt_node_t *tpgt = NULL;
struct sockaddr_in *sp4;
struct sockaddr_in6 *sp6;
/*
* 7 is enough room for the largest TPGT of "65536", the ',' and a NULL
*/
char buf[INET6_ADDRSTRLEN + 7];
char net_buf[INET6_ADDRSTRLEN];
if ((tpgt_list = tgt_node_next(targ, XML_ELEMENT_TPGTLIST,
NULL)) == NULL) {
if_target_address(text, text_length,
(struct sockaddr *)&c->c_target_sockaddr);
return;
}
while ((tpgt = tgt_node_next(tpgt_list, XML_ELEMENT_TPGT,
tpgt)) != NULL) {
if (convert_local_tpgt(text, text_length, tpgt->x_value) ==
False) {
if (c->c_target_sockaddr.ss_family == AF_INET) {
/*CSTYLED*/
sp4 = (struct sockaddr_in *)&c->c_target_sockaddr;
(void) snprintf(buf, sizeof (buf), "%s,%s",
inet_ntop(sp4->sin_family,
(void *)&sp4->sin_addr,
net_buf, sizeof (net_buf)),
tpgt->x_value);
} else {
/*CSTYLED*/
sp6 = (struct sockaddr_in6 *)&c->c_target_sockaddr;
(void) snprintf(buf, sizeof (buf), "%s,%s",
inet_ntop(sp6->sin6_family,
(void *)&sp6->sin6_addr,
net_buf, sizeof (net_buf)),
tpgt->x_value);
}
(void) add_text(text, text_length, "TargetAddress",
buf);
}
}
}
/*
* mgmt_convert_param() converts legacy params file of each LUN
* to scf data. It will convert LUNs under one target each time.
* Args:
* dir - string of directory where param file is stored
* tnode - node tree which contains to a target
*/
Boolean_t
mgmt_convert_param(char *dir, tgt_node_t *tnode)
{
Boolean_t ret = False;
char path[MAXPATHLEN];
int xml_fd = -1;
int n;
int lun_num;
tgt_node_t *lun = NULL;
tgt_node_t *params = NULL;
xmlTextReaderPtr r;
while ((lun = tgt_node_next(tnode, XML_ELEMENT_LUN, lun)) != NULL) {
if ((tgt_find_value_int(lun, XML_ELEMENT_LUN, &lun_num)) ==
False)
continue;
(void) snprintf(path, sizeof (path), "%s/%s%d",
dir, PARAMBASE, lun_num);
if ((xml_fd = open(path, O_RDONLY)) < 0)
continue;
if ((r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd,
NULL, NULL, 0)) == NULL)
continue;
n = xmlTextReaderRead(r);
while (n == 1) {
if (tgt_node_process(r, ¶ms) == False) {
break;
}
n = xmlTextReaderRead(r);
}
if (n < 0) {
ret = False;
break;
}
if (mgmt_param_save2scf(params, tnode->x_value, lun_num)
!= True) {
ret = False;
break;
} else {
backup(path, tnode->x_value);
ret = True;
}
params = NULL;
(void) close(xml_fd);
xmlTextReaderClose(r);
xmlFreeTextReader(r);
}
if (ret == False)
syslog(LOG_ERR, "Converting target %s params failed", dir);
return (ret);
}
/*
* []----
* | find_target_node -- given a target IQN name, return the XML node
* []----
*/
tgt_node_t *
find_target_node(char *targ_name)
{
tgt_node_t *tnode = NULL;
char *iname;
while ((tnode = tgt_node_next(targets_config, XML_ELEMENT_TARG,
tnode)) != NULL) {
if (tgt_find_value_str(tnode, XML_ELEMENT_INAME, &iname) ==
True) {
if (strcmp(iname, targ_name) == 0) {
free(iname);
return (tnode);
} else
free(iname);
}
}
return (NULL);
}
static char *
remove_target(tgt_node_t *x)
{
char *msg = NULL;
char *prop = NULL;
tgt_node_t *targ = NULL;
tgt_node_t *list;
tgt_node_t *c = NULL;
Boolean_t change_made = False;
int lun_num;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &prop) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
while ((targ = tgt_node_next(targets_config, XML_ELEMENT_TARG, targ)) !=
NULL) {
if (strcmp(targ->x_value, prop) == 0)
break;
}
free(prop);
if (targ == NULL) {
xml_rtn_msg(&msg, ERR_TARG_NOT_FOUND);
return (msg);
}
if (tgt_find_value_str(x, XML_ELEMENT_ACL, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_ACL);
return (msg);
}
if ((list = tgt_node_next(targ, XML_ELEMENT_ACLLIST, NULL)) ==
NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_ACL_NOT_FOUND);
return (msg);
}
c = tgt_node_alloc(XML_ELEMENT_ACLINIT, String, prop);
if (tgt_node_remove(list, c, MatchBoth) == False) {
xml_rtn_msg(&msg, ERR_INIT_NOT_FOUND);
goto error;
}
tgt_node_free(c);
if (list->x_child == NULL)
(void) tgt_node_remove(targ, list, MatchName);
free(prop);
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_TPGT, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_TPGT);
return (msg);
}
if ((list = tgt_node_next(targ, XML_ELEMENT_TPGTLIST, NULL)) ==
NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_ACL_NOT_FOUND);
return (msg);
}
c = tgt_node_alloc(XML_ELEMENT_TPGT, String, prop);
if (tgt_node_remove(list, c, MatchBoth) == False) {
xml_rtn_msg(&msg, ERR_TPGT_NOT_FOUND);
goto error;
}
tgt_node_free(c);
if (list->x_child == NULL)
(void) tgt_node_remove(targ, list, MatchName);
free(prop);
/* update isns */
if (isns_enabled()) {
if (isns_dev_update(targ->x_value, ISNS_MOD_TPGT) != 0)
syslog(LOG_ALERT, "ISNS register failed\n");
}
change_made = True;
}
if (tgt_find_value_int(x, XML_ELEMENT_LUN, &lun_num) == True) {
if (tgt_find_value_intchk(x, XML_ELEMENT_LUN, &lun_num) ==
False) {
xml_rtn_msg(&msg, ERR_LUN_INVALID_RANGE);
return (msg);
}
/*
* Save the iscsi-name which we'll need to remove LUNs.
*/
if (tgt_find_value_str(targ, XML_ELEMENT_INAME, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_TARGCFG_MISSING_INAME);
return (msg);
}
logout_targ(prop);
thick_provo_stop(prop, lun_num);
remove_target_common(targ->x_value, lun_num, &msg);
if (msg != NULL)
goto error;
/* ISNS de-register target if it's the last lun */
if (lun_num == 0 && isns_enabled() == True) {
if (isns_dereg(prop) != 0)
syslog(LOG_INFO, "ISNS dereg failed\n");
}
iscsi_inventory_change(prop);
free(prop);
change_made = True;
}
if (change_made == True) {
if (mgmt_config_save2scf() == True)
xml_rtn_msg(&msg, ERR_SUCCESS);
} else {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_OPERAND);
}
return (msg);
error:
if (c != NULL)
tgt_node_free(c);
if (prop != NULL)
free(prop);
return (msg);
}
/*
* this function tries to convert configuration in files into scf
* it loads xml conf into node tree then dump them to scf with
* mgmt_config_save2scf()
* this function has 3 return values:
* CONVERT_OK: successfully converted
* CONVERT_INIT_NEW: configuration files dont exist, created a new scf entry
* CONVERT_FAIL: some error occurred in conversion and no scf entry created.
* In this case, user have to check files manually and try
* conversion again.
*/
convert_ret_t
mgmt_convert_conf()
{
targ_scf_t *h = NULL;
xmlTextReaderPtr r;
convert_ret_t ret = CONVERT_FAIL;
int xml_fd = -1;
int n;
tgt_node_t *node = NULL;
tgt_node_t *next = NULL;
char path[MAXPATHLEN];
char *target = NULL;
h = mgmt_handle_init();
if (h == NULL)
return (CONVERT_FAIL);
/* check main config in pgroup iscsitgt */
if (scf_service_get_pg(h->t_service, "iscsitgt", h->t_pg) == 0) {
ret = CONVERT_OK;
goto done;
}
/* check the conf files */
if (access(config_file, R_OK) != 0) {
/*
* if there is no configuration file, initialize
* an empty scf entry
*/
if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
ret = CONVERT_INIT_NEW;
node = tgt_node_alloc(XML_ELEMENT_VERS, String, "1.0");
new_property(h, node);
tgt_node_free(node);
/* "daemonize" is set to true by default */
node = tgt_node_alloc(XML_ELEMENT_DBGDAEMON, String,
"true");
new_property(h, node);
tgt_node_free(node);
node = NULL;
node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, node);
tgt_node_free(node);
mgmt_transaction_end(h);
} else {
syslog(LOG_ERR, "Creating empty entry failed");
ret = CONVERT_FAIL;
goto done;
}
if (mgmt_transaction_start(h, "passwords", "application") ==
True) {
node = tgt_node_alloc(ISCSI_READ_AUTHNAME, String,
ISCSI_AUTH_READ);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, node);
tgt_node_free(node);
mgmt_transaction_end(h);
} else {
syslog(LOG_ERR, "Creating empty entry failed");
ret = CONVERT_FAIL;
}
goto done;
}
if ((xml_fd = open(config_file, O_RDONLY)) >= 0)
r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd, NULL, NULL, 0);
if (r != NULL) {
n = xmlTextReaderRead(r);
while (n == 1) {
if (tgt_node_process(r, &node) == False) {
break;
}
n = xmlTextReaderRead(r);
}
if (n < 0) {
syslog(LOG_ERR, "Parsing main config failed");
ret = CONVERT_FAIL;
goto done;
}
main_config = node;
(void) tgt_find_value_str(node, XML_ELEMENT_BASEDIR,
&target_basedir);
if (target_basedir == NULL)
target_basedir = strdup(DEFAULT_TARGET_BASEDIR);
/* Now convert targets' config if possible */
if (xml_fd != -1)
(void) close(xml_fd);
xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
r = NULL;
xml_fd = -1;
node = NULL;
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, "config.xml");
if ((xml_fd = open(path, O_RDONLY)) >= 0)
r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd,
NULL, NULL, 0);
if (r != NULL) {
n = xmlTextReaderRead(r);
while (n == 1) {
if (tgt_node_process(r, &node) == False) {
break;
}
n = xmlTextReaderRead(r);
}
if (n < 0) {
syslog(LOG_ERR, "Parsing target conf failed");
ret = CONVERT_FAIL;
goto done;
}
/* now combine main_config and node */
if (node) {
next = NULL;
while ((next = tgt_node_next(node,
XML_ELEMENT_TARG, next)) != NULL) {
tgt_node_add(main_config,
tgt_node_dup(next));
}
tgt_node_free(node);
}
if (mgmt_config_save2scf() != True) {
syslog(LOG_ERR, "Converting config failed");
if (xml_fd != -1)
(void) close(xml_fd);
xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
ret = CONVERT_FAIL;
goto done;
}
/* Copy files into backup dir */
(void) snprintf(path, sizeof (path), "%s/backup",
target_basedir);
if ((mkdir(path, 0755) == -1) && (errno != EEXIST)) {
syslog(LOG_ERR, "Creating backup dir failed");
ret = CONVERT_FAIL;
goto done;
}
backup(config_file, NULL);
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, "config.xml");
backup(path, NULL);
while ((next = tgt_node_next(main_config,
XML_ELEMENT_TARG, next)) != NULL) {
if (tgt_find_value_str(next, XML_ELEMENT_INAME,
&target) == False) {
continue;
}
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, target);
if (mgmt_convert_param(path, next)
!= True) {
ret = CONVERT_FAIL;
goto done;
}
free(target);
}
ret = CONVERT_OK;
syslog(LOG_NOTICE, "Conversion succeeded");
xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
} else {
syslog(LOG_ERR, "Reading targets config failed");
ret = CONVERT_FAIL;
goto done;
}
} else {
syslog(LOG_ERR, "Reading main config failed");
ret = CONVERT_FAIL;
goto done;
}
done:
if (xml_fd != -1)
(void) close(xml_fd);
mgmt_handle_fini(h);
return (ret);
}
/*
* []----
* | modify_target -- updates one or more properties for a target
* []----
*/
static char *
modify_target(tgt_node_t *x, ucred_t *cred)
{
char *msg = NULL;
char *name = NULL;
char iscsi_path[MAXPATHLEN];
char targ_name[64];
char *iscsi = NULL;
char *prop = NULL;
char path[MAXPATHLEN];
char *m;
char buf[512]; /* one sector size block */
tgt_node_t *t = NULL;
tgt_node_t *list = NULL;
tgt_node_t *c = NULL;
tgt_node_t *node = NULL;
tgt_node_t *tpgt = NULL;
Boolean_t change_made = False;
int lun = 0;
int fd;
uint64_t val, new_lu_size, cur_lu_size;
struct stat st;
uint32_t isns_mods = 0;
(void) pthread_rwlock_wrlock(&targ_config_mutex);
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &name) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
goto error;
}
while ((t = tgt_node_next_child(targets_config, XML_ELEMENT_TARG,
t)) != NULL) {
if (strcmp(t->x_value, name) == 0) {
break;
}
}
if (t == NULL) {
free(name);
xml_rtn_msg(&msg, ERR_TARG_NOT_FOUND);
goto error;
}
if (tgt_find_attr_str(t, XML_ELEMENT_INCORE, &m) == True) {
if (strcmp(m, "true") == 0) {
free(m);
free(name);
(void) pthread_rwlock_unlock(&targ_config_mutex);
return (modify_zfs(x, cred));
}
free(m);
}
/*
* Under base dir, file 'target name' is a symbolic link
* to the real directory 'IQN name' which stores params and back
* storage. Therefore we can easily get IQN name from target
* name by read the symbolic link content.
*/
(void) snprintf(path, sizeof (path), "%s/%s", target_basedir, name);
bzero(iscsi_path, sizeof (iscsi_path));
(void) readlink(path, iscsi_path, sizeof (iscsi_path));
iscsi = basename(iscsi_path);
/* ---- Finished with these so go ahead and release the memory ---- */
(void) strncpy(targ_name, name, sizeof (targ_name));
free(name);
/*
* Grow the LU. We currently do not support shrinking the LU and
* that is only because it's unknown if any applications could support
* that type of data loss. To support shrinking all that would be
* needed is to remove the new/old size check and perform a truncation.
* The actually truncation request should be shipped off to the T10
* layer so that the LU thread can remap the smaller size without
* anyone accessing the data.
*/
if (tgt_find_value_str(x, XML_ELEMENT_SIZE, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_TPGT);
goto error;
}
if (strtoll_multiplier(prop, &new_lu_size) == False) {
free(prop);
xml_rtn_msg(&msg, ERR_INVALID_SIZE);
goto error;
}
free(prop);
if ((new_lu_size % 512LL) != 0) {
xml_rtn_msg(&msg, ERR_SIZE_MOD_BLOCK);
goto error;
}
new_lu_size /= 512LL;
/* ---- default to LUN 0 ---- */
(void) tgt_find_value_int(x, XML_ELEMENT_LUN, &lun);
/* ---- read in current parameters ---- */
if (mgmt_get_param(&node, targ_name, lun) == False) {
xml_rtn_msg(&msg, ERR_OPEN_PARAM_FILE_FAILED);
goto error;
}
/* ---- validate that we're indeed growing the LU ---- */
if (tgt_find_value_str(node, XML_ELEMENT_SIZE, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_INIT_XML_READER_FAILED);
goto error;
}
if (strtoll_multiplier(prop, &cur_lu_size) == False) {
free(prop);
xml_rtn_msg(&msg, ERR_INVALID_SIZE);
goto error;
}
free(prop);
if (new_lu_size < cur_lu_size) {
xml_rtn_msg(&msg, ERR_CANT_SHRINK_LU);
goto error;
}
/* ---- check that this LU is of type 'disk' or 'tape' ---- */
if (tgt_find_value_str(node, XML_ELEMENT_DTYPE, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_INIT_XML_READER_FAILED);
goto error;
}
if ((strcmp(prop, TGT_TYPE_DISK) != 0) &&
(strcmp(prop, TGT_TYPE_TAPE) != 0)) {
xml_rtn_msg(&msg, ERR_RESIZE_WRONG_DTYPE);
free(prop);
goto error;
}
free(prop);
/* ---- validate the backing store is a regular file ---- */
(void) snprintf(path, sizeof (path), "%s/%s/%s%d",
target_basedir, iscsi, LUNBASE, lun);
if (stat(path, &st) == -1) {
xml_rtn_msg(&msg, ERR_STAT_BACKING_FAILED);
goto error;
}
if ((st.st_mode & S_IFMT) != S_IFREG) {
xml_rtn_msg(&msg,
ERR_DISK_BACKING_MUST_BE_REGULAR_FILE);
goto error;
}
/* ---- update the parameter node with new size ---- */
if ((c = tgt_node_alloc(XML_ELEMENT_SIZE, Uint64, &new_lu_size))
== NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_replace(node, c, MatchName);
tgt_node_free(c);
/* ---- now update params file ---- */
(void) mgmt_param_save2scf(node, targ_name, lun);
/* ---- grow lu backing store ---- */
(void) snprintf(path, sizeof (path), "%s/%s/%s%d",
target_basedir, iscsi, LUNBASE, lun);
if ((fd = open(path, O_RDWR|O_CREAT|O_LARGEFILE, 0600)) < 0) {
xml_rtn_msg(&msg, ERR_LUN_NOT_FOUND);
goto error;
}
(void) lseek(fd, (new_lu_size * 512LL) - 512LL, 0);
bzero(buf, sizeof (buf));
if (write(fd, buf, sizeof (buf)) != sizeof (buf)) {
xml_rtn_msg(&msg, ERR_LUN_NOT_GROWN);
(void) close(fd);
goto error;
}
(void) close(fd);
/* ---- send updates to current initiators via ASC/ASCQ ---- */
iscsi_capacity_change(iscsi, lun);
prop = NULL;
tgt_node_free(node);
node = NULL;
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_TPGT, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_TPGT);
goto error;
}
/*
* Validate that the Target Portal Group Tag is reasonable.
*/
val = strtoll(prop, &m, 0);
if ((val < TPGT_MIN) || (val > TPGT_MAX) ||
((m != NULL) && (*m != '\0'))) {
xml_rtn_msg(&msg, ERR_INVALID_TPGT);
free(prop);
goto error;
}
/* update isns only if TPGT contains ip_addr */
tpgt = NULL;
while ((tpgt = tgt_node_next_child(main_config,
XML_ELEMENT_TPGT, tpgt)) != NULL) {
if (strcmp(prop, tpgt->x_value) != 0)
continue;
if (tgt_node_next(tpgt, XML_ELEMENT_IPADDR, NULL)
!= NULL) {
isns_mods |= ISNS_MOD_TPGT;
break;
} else {
xml_rtn_msg(&msg, ERR_TPGT_NO_IPADDR);
free(prop);
goto error;
}
}
if ((c = tgt_node_alloc(XML_ELEMENT_TPGT, String, prop)) ==
NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
if ((list = tgt_node_next(t, XML_ELEMENT_TPGTLIST,
NULL)) != NULL) {
tgt_node_replace(list, c, MatchBoth);
/*
* tgt_node_replace will duplicate the child node
* tgt_node_add which is used below just links it
* into the tree.
*/
tgt_node_free(c);
} else {
list = tgt_node_alloc(XML_ELEMENT_TPGTLIST, String, "");
if (list == NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(list, c);
tgt_node_add(t, list);
}
free(prop);
prop = NULL;
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_ACL, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_ACL);
goto error;
}
c = tgt_node_alloc(XML_ELEMENT_INIT, String, prop);
if (c == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
free(prop);
goto error;
}
if ((list = tgt_node_next(t, XML_ELEMENT_ACLLIST,
NULL)) != NULL) {
tgt_node_replace(list, c, MatchBoth);
/* ---- See above usage ---- */
tgt_node_free(c);
} else {
list = tgt_node_alloc(XML_ELEMENT_ACLLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
free(prop);
goto error;
}
tgt_node_add(list, c);
tgt_node_add(t, list);
}
free(prop);
prop = NULL;
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_ALIAS, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_ALIAS);
goto error;
}
if (modify_element(XML_ELEMENT_ALIAS, prop, t, MatchName) ==
False) {
xml_rtn_msg(&msg, ERR_NO_MEM);
free(prop);
goto error;
}
free(prop);
prop = NULL;
isns_mods |= ISNS_MOD_ALIAS;
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_MAXRECV, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_MAXRECV);
goto error;
}
if ((strtoll_multiplier(prop, &val) == False) ||
(val < MAXRCVDATA_MIN) || (val > MAXRCVDATA_MAX)) {
free(prop);
xml_rtn_msg(&msg, ERR_INVALID_MAXRECV);
goto error;
}
free(prop);
if ((prop = malloc(32)) == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
(void) snprintf(prop, 32, "%d", val);
if (modify_element(XML_ELEMENT_MAXRECV, prop, t, MatchName) ==
False) {
free(prop);
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
free(prop);
prop = NULL;
change_made = True;
}
if (change_made == True) {
if (mgmt_config_save2scf() == False) {
xml_rtn_msg(&msg, ERR_UPDATE_TARGCFG_FAILED);
goto error;
}
if (isns_enabled() == True) {
if (isns_dev_update(t->x_value, isns_mods) != 0) {
xml_rtn_msg(&msg, ERR_ISNS_ERROR);
goto error;
}
}
xml_rtn_msg(&msg, ERR_SUCCESS);
} else {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_OPERAND);
}
error:
(void) pthread_rwlock_unlock(&targ_config_mutex);
if (node)
tgt_node_free(node);
return (msg);
}
/*
* []----
* | check_access -- see if the requesting initiator is in the ACL
* |
* | Optionally will also check to see if this initiator requires
* | authentication.
* []----
*/
Boolean_t
check_access(tgt_node_t *targ, char *initiator_name, Boolean_t req_chap)
{
tgt_node_t *acl;
tgt_node_t *inode = NULL;
tgt_node_t *tgt_initiator = NULL;
char *dummy;
Boolean_t valid = False;
Boolean_t found_chap = False;
Boolean_t access = False;
/*
* If ISNS is enable check for access privilege from isns server
*/
if (isns_enabled() == True) {
if (tgt_find_value_str(targ, XML_ELEMENT_INAME, &dummy)
== False) {
return (False);
}
access = isns_qry_initiator(dummy, initiator_name);
free(dummy);
if (req_chap == False) {
return (access);
}
/* Need to check if CHAP is needed for initiator */
while ((inode = tgt_node_next_child(main_config,
XML_ELEMENT_INIT, inode)) != NULL) {
if (tgt_find_value_str(inode, XML_ELEMENT_INAME, &dummy)
== True) {
if (strcmp(dummy, initiator_name) == 0) {
free(dummy);
if (tgt_find_value_str(inode,
XML_ELEMENT_CHAPSECRET, &dummy)
== True) {
free(dummy);
found_chap = True;
break;
}
}
}
}
if (access == True) {
if ((req_chap == True) && (found_chap == True))
access = False;
}
return (access);
}
/*
* If there's no ACL for this target everyone has access.
*/
if ((acl = tgt_node_next(targ, XML_ELEMENT_ACLLIST, NULL)) == NULL)
return (True);
/*
* Find the local initiator name and also save the knowledge
* if the initiator had a CHAP secret.
*/
inode = NULL;
while ((inode = tgt_node_next_child(main_config, XML_ELEMENT_INIT,
inode)) != NULL) {
if (tgt_find_value_str(inode, XML_ELEMENT_INAME, &dummy) ==
True) {
if (strcmp(dummy, initiator_name) == 0) {
free(dummy);
if (tgt_find_value_str(inode,
XML_ELEMENT_CHAPSECRET, &dummy) == True) {
free(dummy);
found_chap = True;
}
break;
} else {
free(dummy);
}
}
}
if ((acl != NULL) && (inode == NULL))
return (False);
while ((tgt_initiator = tgt_node_next(acl, XML_ELEMENT_INIT,
tgt_initiator)) != NULL) {
if (strcmp(inode->x_value, tgt_initiator->x_value) == 0) {
valid = True;
break;
}
}
if (valid == True) {
/*
* If req_chap is True it means the login code hasn't gone
* through the authentication phase and it's trying to
* determine if the initiator should have done so. If
* we find a CHAP-secret then this routine will fail.
* No CHAP-secret for an initiator just means that a
* simple ACL list is used. This can be spoofed easily
* enough and is mainly used to limit the number of
* targets an initiator would see.
*/
if ((req_chap == True) && (found_chap == True))
valid = False;
}
return (valid);
}
/*
* []----
* | modify_tpgt -- add an IP-address to a target portal group
* []----
*/
static char *
modify_tpgt(tgt_node_t *x)
{
struct addrinfo *res = NULL;
char *msg = NULL;
char *name = NULL;
char *ip_str = NULL;
tgt_node_t *tnode = NULL;
tgt_node_t *list = NULL;
(void) pthread_rwlock_wrlock(&targ_config_mutex);
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &name) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
goto error;
}
if (tgt_find_value_str(x, XML_ELEMENT_IPADDR, &ip_str) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_IPADDR);
goto error;
}
if ((getaddrinfo(ip_str, NULL, NULL, &res) != 0) || (res == NULL)) {
xml_rtn_msg(&msg, ERR_INVALID_IP);
goto error;
}
while ((tnode = tgt_node_next_child(main_config, XML_ELEMENT_TPGT,
tnode)) != NULL) {
if (strcmp(tnode->x_value, name) == 0)
break;
}
if (tnode == NULL) {
xml_rtn_msg(&msg, ERR_TPGT_NOT_FOUND);
goto error;
}
if ((list = tgt_node_next(tnode, XML_ELEMENT_IPADDRLIST, NULL))
== NULL) {
list = tgt_node_alloc(XML_ELEMENT_IPADDRLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(tnode, list);
}
if (modify_element(XML_ELEMENT_IPADDR, ip_str, list, MatchBoth) ==
False) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
if (mgmt_config_save2scf() == True) {
xml_rtn_msg(&msg, ERR_SUCCESS);
} else {
/* tpgt change should be updated to smf */
xml_rtn_msg(&msg, ERR_INTERNAL_ERROR);
}
/*
* Re-register all targets, currently there's no method to
* update TPGT for individual target
*/
if (isns_enabled() == True) {
(void) isns_reg_all();
}
error:
if (name)
free(name);
if (ip_str)
free(ip_str);
if (res)
freeaddrinfo(res);
(void) pthread_rwlock_unlock(&targ_config_mutex);
return (msg);
}
/*
* Find ip-addr associated with TPGT, don't send if no ip-addr is
* found for a TPGT
*/
static int
append_tpgt(tgt_node_t *tgt, isns_pdu_t *cmd)
{
tgt_node_t *t, *x;
tgt_node_t *pgt = NULL;
tgt_node_t *iplist = NULL;
tgt_node_t *tpgt = NULL;
ip_t eid;
/* Always add the default TPGT (1) */
(void) isns_append_attr(cmd, ISNS_PG_TAG_ATTR_ID, ISNS_PG_TAG_SZ, NULL,
1);
if (isns_append_attr(cmd, ISNS_PG_PORTAL_IP_ADDR_ATTR_ID,
eid_ip.ai_addrlen, (void *)&eid_ip.ip_adr,
eid_ip.ip_len) != 0) {
return (-1);
}
if (isns_append_attr(cmd, ISNS_PG_PORTAL_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, iscsi_port) != 0) {
return (-1);
}
/* Get the remainning TPGT-LIST */
if ((t = tgt_node_next(tgt, XML_ELEMENT_TPGTLIST, NULL))
!= NULL) {
/* find tgpt from tpgt-list */
while ((pgt = tgt_node_next(t, XML_ELEMENT_TPGT, pgt))
!= NULL) {
/* update isns only if TPGT contains ip_addr */
while ((tpgt = tgt_node_next_child(main_config,
XML_ELEMENT_TPGT, tpgt)) != NULL) {
if (strcmp(pgt->x_value, tpgt->x_value) != 0)
continue;
if ((iplist = tgt_node_next(tpgt,
XML_ELEMENT_IPADDRLIST, NULL)) != NULL)
break;
}
if (tpgt == NULL || iplist == NULL)
continue;
if (isns_append_attr(cmd, ISNS_PG_TAG_ATTR_ID,
ISNS_PG_TAG_SZ, NULL,
strtol(pgt->x_value, NULL, 0)) != 0) {
return (-1);
}
/* get ip-addr & port */
for (x = iplist->x_child; x; x = x->x_sibling) {
if (get_ip_addr(x->x_value, &eid) < 0)
continue;
if (isns_append_attr(cmd,
ISNS_PG_PORTAL_IP_ADDR_ATTR_ID,
eid.ai_addrlen, (void *)&eid.ip_adr,
eid.ip_len) != 0) {
return (-1);
}
if (isns_append_attr(cmd,
ISNS_PG_PORTAL_PORT_ATTR_ID,
ISNS_PORT_SZ, NULL, iscsi_port) != 0) {
return (-1);
}
}
}
}
return (0);
}
static char *
remove_tpgt(tgt_node_t *x)
{
char *msg = NULL;
char *prop = NULL;
tgt_node_t *node = NULL;
tgt_node_t *c = NULL;
Boolean_t change_made = False;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &prop) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
while ((node = tgt_node_next(main_config, XML_ELEMENT_TPGT, node)) !=
NULL) {
if (strcmp(node->x_value, prop) == 0)
break;
}
free(prop);
if (node == NULL) {
xml_rtn_msg(&msg, ERR_TPGT_NOT_FOUND);
return (msg);
}
if (tgt_find_value_str(x, XML_ELEMENT_IPADDR, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_IPADDR);
return (msg);
}
c = tgt_node_alloc(XML_ELEMENT_IPADDR, String, prop);
if (tgt_node_remove(node, c, MatchBoth) == False) {
xml_rtn_msg(&msg, ERR_INVALID_IP);
goto error;
}
tgt_node_free(c);
free(prop);
change_made = True;
}
if ((change_made != True) &&
(tgt_find_value_str(x, XML_ELEMENT_ALL, &prop) == True)) {
tgt_node_remove(main_config, node, MatchBoth);
change_made = True;
}
if (change_made == True) {
/* Isns re-register all target */
if (isns_enabled() == True)
isns_reg_all();
if (mgmt_config_save2scf() == True)
xml_rtn_msg(&msg, ERR_SUCCESS);
} else {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_OPERAND);
}
return (msg);
error:
if (c != NULL)
tgt_node_free(c);
if (prop != NULL)
free(prop);
return (msg);
}
/*
* modify_zfs -- test for the existence of a certain dataset being shared
*
* Called when someone uses the iscsitgt_is_shared() function from libiscsitgt.
* All that
*/
static char *
modify_zfs(tgt_node_t *x, ucred_t *cred)
{
char *msg = NULL;
char *dataset = NULL;
char *prop;
char *m;
tgt_node_t *n = NULL;
tgt_node_t *t = NULL;
tgt_node_t *list = NULL;
tgt_node_t *c1, *c2;
Boolean_t change_made = False;
uint64_t size;
int status;
int val;
char *tru = "true";
(void) pthread_rwlock_wrlock(&targ_config_mutex);
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &dataset) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
goto error;
}
/*
* Validate request
*/
if (tgt_find_value_str(x, XML_ELEMENT_VALIDATE, &tru)) {
(void) pthread_rwlock_unlock(&targ_config_mutex);
if (tru)
free(tru);
free(dataset);
return (validate_zfs_iscsitgt(x));
}
/*
* Check for existance of ZFS shareiscsi properties
*/
status = get_zfs_shareiscsi(dataset, &n, &size, cred);
if ((status != ERR_SUCCESS) && (status != ERR_NULL_XML_MESSAGE)) {
xml_rtn_msg(&msg, ERR_TARG_NOT_FOUND);
goto error;
}
while ((t = tgt_node_next_child(targets_config, XML_ELEMENT_TARG, t))
!= NULL) {
if (strcmp(t->x_value, dataset) == 0)
break;
}
if (t == NULL) {
xml_rtn_msg(&msg, ERR_TARG_NOT_FOUND);
goto error;
}
if (tgt_find_value_str(x, XML_ELEMENT_TPGT, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_TPGT);
goto error;
}
/*
* Validate that the Target Portal Group Tag is reasonable.
*/
val = strtoll(prop, &m, 0);
if ((val < TPGT_MIN) || (val > TPGT_MAX) ||
((m != NULL) && (*m != '\0'))) {
xml_rtn_msg(&msg, ERR_INVALID_TPGT);
goto error;
}
if ((c1 = tgt_node_alloc(XML_ELEMENT_TPGT, String, prop)) ==
NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
/*
* Due to the fact that the targets_config differs from the
* ZVOL properties stored in zfs_shareiscsi, two lists need to
* be updated
*/
c2 = tgt_node_dup(c1);
if ((list = tgt_node_next(t, XML_ELEMENT_TPGTLIST, NULL))
!= NULL) {
/*
* tgt_node_replace will duplicate the child node
* tgt_node_add which is used below just links it
* into the tree.
*/
tgt_node_replace(list, c1, MatchBoth);
tgt_node_free(c1);
} else {
list = tgt_node_alloc(XML_ELEMENT_TPGTLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(list, c1);
tgt_node_add(t, list);
}
if ((list = tgt_node_next(n, XML_ELEMENT_TPGTLIST, NULL))
!= NULL) {
/*
* tgt_node_replace will duplicate the child node
* tgt_node_add which is used below just links it
* into the tree.
*/
tgt_node_replace(list, c2, MatchBoth);
tgt_node_free(c2);
} else {
list = tgt_node_alloc(XML_ELEMENT_TPGTLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(list, c2);
tgt_node_add(n, list);
}
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_ACL, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_ACL);
goto error;
}
c1 = tgt_node_alloc(XML_ELEMENT_INIT, String, prop);
if (c1 == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
/*
* Due to the fact that the targets_config differs from the
* ZVOL properties stored in zfs_shareiscsi, two lists need to
* be updated
*/
c2 = tgt_node_dup(c1);
if ((list = tgt_node_next(t, XML_ELEMENT_ACLLIST, NULL))
!= NULL) {
/*
* tgt_node_replace will duplicate the child node
* tgt_node_add which is used below just links it
* into the tree.
*/
tgt_node_replace(list, c1, MatchBoth);
tgt_node_free(c1);
} else {
list = tgt_node_alloc(XML_ELEMENT_ACLLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(list, c1);
tgt_node_add(t, list);
}
if ((list = tgt_node_next(n, XML_ELEMENT_ACLLIST, NULL))
!= NULL) {
/*
* tgt_node_replace will duplicate the child node
* tgt_node_add which is used below just links it
* into the tree.
*/
tgt_node_replace(list, c2, MatchBoth);
tgt_node_free(c2);
} else {
list = tgt_node_alloc(XML_ELEMENT_ACLLIST, String, "");
if (list == NULL) {
xml_rtn_msg(&msg, ERR_NO_MEM);
goto error;
}
tgt_node_add(list, c2);
tgt_node_add(n, list);
}
change_made = True;
}
if (change_made == True) {
status = put_zfs_shareiscsi(dataset, n);
if (status != ERR_SUCCESS) {
xml_rtn_msg(&msg, status);
goto error;
} else {
xml_rtn_msg(&msg, ERR_SUCCESS);
}
} else {
xml_rtn_msg(&msg, ERR_SUCCESS);
}
error:
if (n)
tgt_node_free(n);
if (dataset)
free(dataset);
(void) pthread_rwlock_unlock(&targ_config_mutex);
return (msg);
}
static int
listTpgt(int operandLen, char *operand[], cmdOptions_t *options)
{
char *first_str = NULL;
tgt_node_t *node = NULL;
tgt_node_t *n1 = NULL; /* pointer to node (depth=1) */
tgt_node_t *n2 = NULL; /* pointer to node (depth=2) */
cmdOptions_t *optionList = options;
Boolean_t verbose = False;
int addrs;
if (operand == NULL)
return (1);
tgt_buf_add_tag(&first_str, "list", Tag_Start);
tgt_buf_add_tag(&first_str, XML_ELEMENT_TPGT, Tag_Start);
if (operandLen)
tgt_buf_add(&first_str, XML_ELEMENT_NAME, operand[0]);
if (optionList) {
switch (optionList->optval) {
case 0: /* no options, treat as --verbose */
break;
case 'v':
verbose = True;
tgt_buf_add(&first_str,
XML_ELEMENT_VERBOSE, OPT_TRUE);
break;
default:
(void) fprintf(stderr, "%s: %c: %s\n",
cmdName, optionList->optval,
gettext("unknown option"));
free(first_str);
return (1);
}
}
tgt_buf_add_tag(&first_str, XML_ELEMENT_TPGT, Tag_End);
tgt_buf_add_tag(&first_str, "list", Tag_End);
if ((node = tgt_door_call(first_str, 0)) == NULL) {
(void) fprintf(stderr, "%s: %s\n", cmdName,
gettext("No reponse from daemon"));
return (1);
}
free(first_str);
if (strcmp(node->x_name, XML_ELEMENT_RESULT)) {
(void) fprintf(stderr, "%s: %s\n", cmdName,
gettext("Bad XML response"));
return (1);
}
n1 = NULL;
while (n1 = tgt_node_next_child(node, XML_ELEMENT_TPGT, n1)) {
(void) printf("%s: %s\n", gettext("TPGT"), n1->x_value);
n2 = NULL;
addrs = 0;
while (n2 = tgt_node_next(n1, XML_ELEMENT_IPADDR, n2)) {
if (verbose == True)
(void) printf("%s%s: %s\n", dospace(1),
gettext("IP Address"),
n2 ? n2->x_value : gettext("Not set"));
addrs++;
}
if (verbose == False) {
(void) printf("%s%s: %d\n", dospace(1),
gettext("IP Address count"), addrs);
} else if (addrs == 0) {
/*
* Verbose is true, but there where no addresses
* for this TPGT. To keep the output consistent
* dump a "Not set" string out.
*/
(void) printf("%s%s: %s\n", dospace(1),
gettext("IP Address"), gettext("Not set"));
}
}
return (0);
}
/*
* remove_zfs -- unshare a ZVOL from the target
*/
static char *
remove_zfs(tgt_node_t *x, ucred_t *cred)
{
char *prop;
char *msg = NULL;
tgt_node_t *targ = NULL;
libzfs_handle_t *zh = NULL;
const priv_set_t *eset;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &prop) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
if ((zh = libzfs_init()) == NULL) {
xml_rtn_msg(&msg, ERR_INTERNAL_ERROR);
free(prop);
return (msg);
}
eset = ucred_getprivset(cred, PRIV_EFFECTIVE);
if (eset != NULL ? !priv_ismember(eset, PRIV_SYS_CONFIG) :
ucred_geteuid(cred) != 0) {
/*
* See if user has ZFS dataset permissions to do operation
*/
if (zfs_iscsi_perm_check(zh, prop, cred) != 0) {
xml_rtn_msg(&msg, ERR_NO_PERMISSION);
free(prop);
libzfs_fini(zh);
return (msg);
}
}
libzfs_fini(zh);
while ((targ = tgt_node_next(targets_config, XML_ELEMENT_TARG, targ))
!= NULL) {
if (strcmp(targ->x_value, prop) == 0)
break;
}
free(prop);
if (targ == NULL) {
/*
* We're unsharing a target. If we don't have a reference
* then there's no problem.
*/
xml_rtn_msg(&msg, ERR_SUCCESS);
return (msg);
}
if (tgt_find_value_str(targ, XML_ELEMENT_INAME, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_TARGCFG_MISSING_INAME);
return (msg);
}
tgt_node_remove(targets_config, targ, MatchBoth);
/*
* Wait until here to issue a logout to any initiators that
* might be logged into the target. Certain initiators are
* sneaky in that if asked to logout they will, but turn right
* around and log back into the target. By waiting until here
* to issue the logout we'll have removed reference to the target
* such that this can't happen.
*/
if (isns_enabled() == True) {
if (isns_dereg(prop) != 0)
syslog(LOG_INFO, "ISNS dereg failed\n");
}
logout_targ(prop);
free(prop);
xml_rtn_msg(&msg, ERR_SUCCESS);
return (msg);
}
/*
* Convert legacy (XML) configuration files into an equivalent SCF
* representation.
*
* Read the XML from disk, translate the XML into a tree of nodes of
* type tgt_node_t, and write the in-memory tree to SCF's persistent
* data-store using mgmt_config_save2scf().
*
* Return Values:
* CONVERT_OK: successfully converted
* CONVERT_INIT_NEW: configuration files don't exist; created an SCF entry
* CONVERT_FAIL: some conversion error occurred; no SCF entry created.
* In this case, user has to manually check files and try
* conversion again.
*/
convert_ret_t
mgmt_convert_conf()
{
targ_scf_t *h = NULL;
xmlTextReaderPtr r;
convert_ret_t ret = CONVERT_FAIL;
int xml_fd = -1;
int n;
tgt_node_t *node = NULL;
tgt_node_t *next = NULL;
char path[MAXPATHLEN];
char *target = NULL;
h = mgmt_handle_init();
if (h == NULL)
return (CONVERT_FAIL);
/*
* Check if the "iscsitgt" PropertyGroup has already been added
* to the "iscsitgt" SMF Service. If so, then we have already
* converted the legacy configuration files (and there is no work
* to do).
*/
if (scf_service_get_pg(h->t_service, "iscsitgt", h->t_pg) == 0) {
ret = CONVERT_OK;
goto done;
}
if (access(config_file, R_OK) != 0) {
/*
* then the Main Config file is not present; initialize
* SCF Properties to default values.
*/
if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
ret = CONVERT_INIT_NEW;
node = tgt_node_alloc(XML_ELEMENT_VERS, String, "1.0");
new_property(h, node);
tgt_node_free(node);
/* "daemonize" is set to true by default */
node = tgt_node_alloc(XML_ELEMENT_DBGDAEMON, String,
"true");
new_property(h, node);
tgt_node_free(node);
node = NULL;
node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, node);
tgt_node_free(node);
(void) mgmt_transaction_end(h);
} else {
syslog(LOG_ERR, "Creating empty entry failed");
ret = CONVERT_FAIL;
goto done;
}
if (mgmt_transaction_start(h, "passwords", "application") ==
True) {
node = tgt_node_alloc(ISCSI_READ_AUTHNAME, String,
ISCSI_AUTH_READ);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, node);
tgt_node_free(node);
node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, node);
tgt_node_free(node);
(void) mgmt_transaction_end(h);
} else {
syslog(LOG_ERR, "Creating empty entry failed");
ret = CONVERT_FAIL;
}
goto done;
}
if ((xml_fd = open(config_file, O_RDONLY)) >= 0)
r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd, NULL, NULL, 0);
if (r != NULL) {
int is_target_config;
n = xmlTextReaderRead(r);
while (n == 1) {
if (tgt_node_process(r, &node) == False) {
break;
}
n = xmlTextReaderRead(r);
}
if (n < 0) {
syslog(LOG_ERR, "Parsing main config failed");
ret = CONVERT_FAIL;
goto done;
}
main_config = node;
/*
* Initialize the Base Directory (global) variable by
* using the value specified in the XML_ELEMENT_BASEDIR
* XML tag. If a tag is not specified, use a default.
*/
(void) tgt_find_value_str(node, XML_ELEMENT_BASEDIR,
&target_basedir);
if (target_basedir == NULL)
target_basedir = strdup(DEFAULT_TARGET_BASEDIR);
if (xml_fd != -1) {
(void) close(xml_fd);
xml_fd = -1;
}
(void) xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
/*
* If a Target Config file is present, read and translate
* its XML representation into a tree of tgt_node_t.
* Merge that tree with the tree of tgt_node_t rooted at
* 'main_config'. The merged tree will then be archived
* using an SCF representation.
*/
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, "config.xml");
if ((xml_fd = open(path, O_RDONLY)) >= 0) {
is_target_config = 1;
r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd,
NULL, NULL, 0);
} else {
is_target_config = 0;
r = NULL;
}
if (r != NULL) {
/* then the Target Config file is available. */
node = NULL;
/*
* Create a tree of tgt_node_t rooted at 'node' by
* processing each XML Tag in the file.
*/
n = xmlTextReaderRead(r);
while (n == 1) {
if (tgt_node_process(r, &node) == False) {
break;
}
n = xmlTextReaderRead(r);
}
if (n < 0) {
syslog(LOG_ERR, "Parsing target conf failed");
ret = CONVERT_FAIL;
goto done;
}
/*
* Merge the tree at 'node' into the tree rooted at
* 'main_config'.
*/
if (node != NULL) {
next = NULL;
while ((next = tgt_node_next(node,
XML_ELEMENT_TARG, next)) != NULL) {
tgt_node_add(main_config,
tgt_node_dup(next));
}
tgt_node_free(node);
}
}
/*
* Iterate over the in-memory tree rooted at 'main_config'
* and write a representation of the appropriate nodes to
* SCF's persistent data-store.
*/
if (mgmt_config_save2scf() != True) {
syslog(LOG_ERR, "Converting config failed");
if (xml_fd != -1) {
(void) close(xml_fd);
xml_fd = -1;
}
(void) xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
ret = CONVERT_FAIL;
goto done;
}
/*
* Move the configuration files into a well-known backup
* directory. This allows a user to restore their
* configuration, if they choose.
*/
(void) snprintf(path, sizeof (path), "%s/backup",
target_basedir);
if ((mkdir(path, 0755) == -1) && (errno != EEXIST)) {
syslog(LOG_ERR, "Creating backup dir failed");
ret = CONVERT_FAIL;
goto done;
}
/* Save the Main Config file. */
backup(config_file, NULL);
/* Save the Target Config file, if it was present. */
if (is_target_config != 0) {
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, "config.xml");
backup(path, NULL);
}
/*
* For each tgt_node_t node in 'main_config' whose value is
* an iSCSI Name as defined in the RFC (3720) standard (eg,
* "iqn.1986..."), read its XML-encoded attributes from a
* flat-file and write an equivalent representation to SCF's
* data-store.
*/
while ((next = tgt_node_next(main_config,
XML_ELEMENT_TARG, next)) != NULL) {
if (tgt_find_value_str(next, XML_ELEMENT_INAME,
&target) == False) {
continue;
}
(void) snprintf(path, MAXPATHLEN, "%s/%s",
target_basedir, target);
if (mgmt_convert_param(path, next)
!= True) {
ret = CONVERT_FAIL;
goto done;
}
free(target);
}
ret = CONVERT_OK;
syslog(LOG_NOTICE, "Conversion succeeded");
(void) xmlTextReaderClose(r);
xmlFreeTextReader(r);
xmlCleanupParser();
} else {
syslog(LOG_ERR, "Reading main config failed");
ret = CONVERT_FAIL;
goto done;
}
done:
if (xml_fd != -1)
(void) close(xml_fd);
mgmt_handle_fini(h);
return (ret);
}
