/*ARGSUSED*/
char *
update_basedir(char *name, char *prop)
{
tgt_node_t *targ = NULL;
char *msg = NULL;
char *v;
if ((prop == NULL) || (strlen(prop) == 0) || (prop[0] != '/')) {
xml_rtn_msg(&msg, ERR_INVALID_BASEDIR);
return (msg);
}
while ((targ = tgt_node_next_child(targets_config, XML_ELEMENT_TARG,
targ)) != NULL) {
/*
* Traverse the list of configured targets, serching for any
* target that is using the current base-directory. Fail the
* update if found.
*
* The only targets that do not use the base-directory at this
* time are those targets persisted in ZFS.
*/
if (tgt_find_attr_str(targ, XML_ELEMENT_INCORE, &v) == True) {
if (v != NULL) {
if (strcmp(v, XML_VALUE_TRUE) == 0) {
free(v);
continue;
}
free(v);
}
}
/*
* Found at least one target, so fail
*/
xml_rtn_msg(&msg, ERR_VALID_TARG_EXIST);
return (msg);
}
if (target_basedir) {
free(target_basedir);
}
target_basedir = strdup(prop);
if ((mkdir(target_basedir, 0700) != 0) && (errno != EEXIST)) {
xml_rtn_msg(&msg, ERR_CREATE_TARGET_DIR_FAILED);
free(target_basedir);
target_basedir = NULL;
}
return (msg);
}
Boolean_t
validate_version(tgt_node_t *node, int *maj_p, int *min_p)
{
char *vers_str = NULL;
char *minor_part;
int maj, min;
if ((tgt_find_attr_str(node, XML_ELEMENT_VERS, &vers_str) == False) ||
(vers_str == NULL))
return (False);
maj = strtol(vers_str, &minor_part, 0);
if ((maj > *maj_p) || (minor_part == NULL) || (*minor_part != '.')) {
free(vers_str);
return (False);
}
min = strtol(&minor_part[1], NULL, 0);
*maj_p = maj;
*min_p = min;
free(vers_str);
return (True);
}
/*
* []----
* | 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);
}
/*
* mgmt_config_save2scf() saves main configuration to scf
* See also : mgmt_get_main_config()
*/
Boolean_t
mgmt_config_save2scf()
{
targ_scf_t *h = NULL;
scf_property_t *prop = NULL;
scf_value_t *value = NULL;
scf_iter_t *iter = NULL;
char *pgname = NULL;
ssize_t max_name_len;
char passcode[32];
char *incore = NULL;
unsigned int outlen;
tgt_node_t *n = NULL;
tgt_node_t *pn = NULL;
tgt_node_t *tn = NULL;
scf_transaction_t *tx = NULL;
secret_list_t *sl_head;
secret_list_t *sl_tail;
Boolean_t status = False;
h = mgmt_handle_init();
if (h == NULL)
return (status);
prop = scf_property_create(h->t_handle);
value = scf_value_create(h->t_handle);
iter = scf_iter_create(h->t_handle);
if (alloc_scf_name(&max_name_len, (void *)&pgname) == False) {
goto error;
}
(void) pthread_mutex_lock(&scf_conf_mutex);
if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
(void) scf_pg_delete(h->t_pg);
(void) mgmt_transaction_end(h);
}
if (mgmt_transaction_start(h, "passwords", "application") == True) {
(void) scf_pg_delete(h->t_pg);
(void) mgmt_transaction_end(h);
}
if (scf_iter_service_pgs_typed(iter, h->t_service, "configuration")
== -1) {
goto error;
}
tx = scf_transaction_create(h->t_handle);
while (scf_iter_next_pg(iter, h->t_pg) > 0) {
(void) scf_transaction_start(tx, h->t_pg);
(void) scf_pg_delete(h->t_pg);
(void) scf_transaction_commit(tx);
}
scf_transaction_reset(tx);
scf_transaction_destroy(tx);
sl_head = (secret_list_t *)calloc(1, sizeof (secret_list_t));
sl_tail = sl_head;
if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
for (n = main_config->x_child; n; n = n->x_sibling) {
if ((tgt_find_attr_str(n, XML_ELEMENT_INCORE, &incore))
== True) {
if (strcmp(incore, "true") == 0) {
/*
* Ignore in core only elements.
* zvol target is the only one with
* incore attr as of now.
*/
free(incore);
continue;
}
/* if incore is false continue on */
free(incore);
}
if (strcmp(n->x_name,
XML_ELEMENT_CHAPSECRET) == 0) {
sl_tail->next = (secret_list_t *)
calloc(1, sizeof (secret_list_t));
sl_tail = sl_tail->next;
sl_tail->name = strdup("main");
sl_tail->secret = strdup(n->x_value);
continue;
}
/* so does the radius server secret */
if (strcmp(n->x_name,
XML_ELEMENT_RAD_SECRET) == 0) {
sl_tail->next = (secret_list_t *)
calloc(1, sizeof (secret_list_t));
sl_tail = sl_tail->next;
sl_tail->name = strdup("radius");
sl_tail->secret = strdup(n->x_value);
continue;
}
if (n->x_child == NULL) {
new_property(h, n);
}
}
new_property(h, main_config->x_attr);
n = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, n);
tgt_node_free(n);
n = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, n);
tgt_node_free(n);
(void) mgmt_transaction_end(h);
}
/* now update target/initiator/tpgt information */
for (n = main_config->x_child; n; n = n->x_sibling) {
if (n->x_child == NULL)
continue;
if ((tgt_find_attr_str(n, XML_ELEMENT_INCORE, &incore))
== True) {
if (strcmp(incore, "true") == 0) {
/*
* Ignore in core only elements.
* zvol target is the only one with
* incore attr as of now.
*/
free(incore);
continue;
}
/* if incore is false continue on */
free(incore);
}
(void) snprintf(pgname, max_name_len, "%s_%s", n->x_name,
n->x_value);
if (mgmt_transaction_start(h, pgname, "configuration")
== True) {
for (pn = n->x_child; pn; pn = pn->x_sibling) {
if (strcmp(pn->x_name,
XML_ELEMENT_CHAPSECRET) == 0) {
sl_tail->next = (secret_list_t *)
calloc(1, sizeof (secret_list_t));
sl_tail = sl_tail->next;
sl_tail->name = (char *)
calloc(1, strlen(n->x_value) + 3);
(void) snprintf(sl_tail->name,
strlen(n->x_value) + 3,
"I_%s", n->x_value);
sl_tail->secret = strdup(pn->x_value);
continue;
}
if (pn->x_child == NULL) {
/* normal property */
new_property(h, pn);
} else {
/* pn -> xxx-list */
new_value_list(h, pn);
}
tn = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME,
String, ISCSI_AUTH_MODIFY);
new_property(h, tn);
tgt_node_free(tn);
tn = tgt_node_alloc(ISCSI_VALUE_AUTHNAME,
String, ISCSI_AUTH_VALUE);
new_property(h, tn);
tgt_node_free(tn);
}
(void) mgmt_transaction_end(h);
} else
goto error;
}
if (mgmt_transaction_start(h, "passwords", "application") == True) {
while (sl_head != NULL) {
/* Here we use sl_tail as a temporari var */
sl_tail = sl_head->next;
if (sl_head->name) {
/* max length of encoded passwd is 24B */
(void) sasl_encode64(sl_head->secret,
strlen(sl_head->secret), passcode,
sizeof (passcode), &outlen);
n = tgt_node_alloc(sl_head->name, String,
passcode);
new_property(h, n);
tgt_node_free(n);
}
if (sl_head->name)
free(sl_head->name);
if (sl_head->secret)
free(sl_head->secret);
free(sl_head);
sl_head = sl_tail;
}
n = tgt_node_alloc(ISCSI_READ_AUTHNAME, String,
ISCSI_AUTH_READ);
new_property(h, n);
tgt_node_free(n);
n = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
ISCSI_AUTH_VALUE);
new_property(h, n);
tgt_node_free(n);
n = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
ISCSI_AUTH_MODIFY);
new_property(h, n);
tgt_node_free(n);
(void) mgmt_transaction_end(h);
}
if (smf_refresh_instance(SA_TARGET_SVC_INSTANCE_FMRI) != 0)
goto error;
status = True;
error:
(void) pthread_mutex_unlock(&scf_conf_mutex);
free(pgname);
scf_iter_destroy(iter);
scf_value_destroy(value);
scf_property_destroy(prop);
mgmt_handle_fini(h);
return (status);
}
