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OS-200 need a better mechanism for storing persistent zone_did
OS-511 make zonecfg device resource extensible, like the net resource
OS-224 add more zonecfg net properties
OS-216 store all net config info on zone
@@ -80,17 +80,20 @@
#define _PATH_TMPFILE "/zonecfg.XXXXXX"
#define ZONE_CB_RETRY_COUNT 10
#define ZONE_EVENT_PING_SUBCLASS "ping"
#define ZONE_EVENT_PING_PUBLISHER "solaris"
+#define DEBUGID_FILE "/etc/zones/did.txt"
+
/* Hard-code the DTD element/attribute/entity names just once, here. */
#define DTD_ELEM_ATTR (const xmlChar *) "attr"
#define DTD_ELEM_COMMENT (const xmlChar *) "comment"
#define DTD_ELEM_DEVICE (const xmlChar *) "device"
#define DTD_ELEM_FS (const xmlChar *) "filesystem"
#define DTD_ELEM_FSOPTION (const xmlChar *) "fsoption"
#define DTD_ELEM_NET (const xmlChar *) "network"
+#define DTD_ELEM_NETATTR (const xmlChar *) "net-attr"
#define DTD_ELEM_RCTL (const xmlChar *) "rctl"
#define DTD_ELEM_RCTLVALUE (const xmlChar *) "rctl-value"
#define DTD_ELEM_ZONE (const xmlChar *) "zone"
#define DTD_ELEM_DATASET (const xmlChar *) "dataset"
#define DTD_ELEM_TMPPOOL (const xmlChar *) "tmp_pool"
@@ -106,23 +109,26 @@
#define DTD_ATTR_ALLOWED_ADDRESS (const xmlChar *) "allowed-address"
#define DTD_ATTR_AUTOBOOT (const xmlChar *) "autoboot"
#define DTD_ATTR_IPTYPE (const xmlChar *) "ip-type"
#define DTD_ATTR_DEFROUTER (const xmlChar *) "defrouter"
#define DTD_ATTR_DIR (const xmlChar *) "directory"
+#define DTD_ATTR_GNIC (const xmlChar *) "global-nic"
#define DTD_ATTR_LIMIT (const xmlChar *) "limit"
#define DTD_ATTR_LIMITPRIV (const xmlChar *) "limitpriv"
#define DTD_ATTR_BOOTARGS (const xmlChar *) "bootargs"
#define DTD_ATTR_SCHED (const xmlChar *) "scheduling-class"
+#define DTD_ATTR_MAC (const xmlChar *) "mac-addr"
#define DTD_ATTR_MATCH (const xmlChar *) "match"
#define DTD_ATTR_NAME (const xmlChar *) "name"
#define DTD_ATTR_PHYSICAL (const xmlChar *) "physical"
#define DTD_ATTR_POOL (const xmlChar *) "pool"
#define DTD_ATTR_PRIV (const xmlChar *) "priv"
#define DTD_ATTR_RAW (const xmlChar *) "raw"
#define DTD_ATTR_SPECIAL (const xmlChar *) "special"
#define DTD_ATTR_TYPE (const xmlChar *) "type"
#define DTD_ATTR_VALUE (const xmlChar *) "value"
+#define DTD_ATTR_VLANID (const xmlChar *) "vlan-id"
#define DTD_ATTR_ZONEPATH (const xmlChar *) "zonepath"
#define DTD_ATTR_NCPU_MIN (const xmlChar *) "ncpu_min"
#define DTD_ATTR_NCPU_MAX (const xmlChar *) "ncpu_max"
#define DTD_ATTR_IMPORTANCE (const xmlChar *) "importance"
#define DTD_ATTR_PHYSCAP (const xmlChar *) "physcap"
@@ -131,10 +137,11 @@
#define DTD_ATTR_UID (const xmlChar *) "uid"
#define DTD_ATTR_GID (const xmlChar *) "gid"
#define DTD_ATTR_MODE (const xmlChar *) "mode"
#define DTD_ATTR_ACL (const xmlChar *) "acl"
#define DTD_ATTR_BRAND (const xmlChar *) "brand"
+#define DTD_ATTR_DID (const xmlChar *) "debugid"
#define DTD_ATTR_HOSTID (const xmlChar *) "hostid"
#define DTD_ATTR_USER (const xmlChar *) "user"
#define DTD_ATTR_AUTHS (const xmlChar *) "auths"
#define DTD_ATTR_FS_ALLOWED (const xmlChar *) "fs-allowed"
@@ -2088,17 +2095,21 @@
* address, and default router information are stored in 'tabptr'.
*/
int
zonecfg_lookup_nwif(zone_dochandle_t handle, struct zone_nwiftab *tabptr)
{
- xmlNodePtr cur;
+ xmlNodePtr cur, val;
xmlNodePtr firstmatch;
int err;
char address[INET6_ADDRSTRLEN];
char physical[LIFNAMSIZ];
+ char mac[MAXMACADDRLEN];
+ char gnic[LIFNAMSIZ];
size_t addrspec; /* nonzero if tabptr has IP addr */
size_t physspec; /* nonzero if tabptr has interface */
+ size_t macspec; /* nonzero if tabptr has mac addr */
+ size_t gnicspec; /* nonzero if tabptr has gnic */
size_t defrouterspec; /* nonzero if tabptr has def. router */
size_t allowed_addrspec;
zone_iptype_t iptype;
if (tabptr == NULL)
@@ -2106,21 +2117,24 @@
/*
* Determine the fields that will be searched. There must be at least
* one.
*
- * zone_nwif_address, zone_nwif_physical, and zone_nwif_defrouter are
+ * zone_nwif_address, zone_nwif_physical, zone_nwif_defrouter,
+ * zone_nwif_mac, zone_nwif_vlan_id and zone_nwif_gnic are
* arrays, so no NULL checks are necessary.
*/
addrspec = strlen(tabptr->zone_nwif_address);
physspec = strlen(tabptr->zone_nwif_physical);
+ macspec = strlen(tabptr->zone_nwif_mac);
+ gnicspec = strlen(tabptr->zone_nwif_gnic);
defrouterspec = strlen(tabptr->zone_nwif_defrouter);
allowed_addrspec = strlen(tabptr->zone_nwif_allowed_address);
if (addrspec != 0 && allowed_addrspec != 0)
return (Z_INVAL); /* can't specify both */
if (addrspec == 0 && physspec == 0 && defrouterspec == 0 &&
- allowed_addrspec == 0)
+ allowed_addrspec == 0 && macspec == 0 && gnicspec == 0)
return (Z_INSUFFICIENT_SPEC);
if ((err = operation_prep(handle)) != Z_OK)
return (err);
@@ -2143,10 +2157,19 @@
*/
if (physspec != 0 && (fetchprop(cur, DTD_ATTR_PHYSICAL,
physical, sizeof (physical)) != Z_OK ||
strcmp(tabptr->zone_nwif_physical, physical) != 0))
continue;
+ if (iptype == ZS_EXCLUSIVE && macspec != 0 &&
+ (fetchprop(cur, DTD_ATTR_MAC, mac, sizeof (mac)) != Z_OK ||
+ strcmp(tabptr->zone_nwif_mac, mac) != 0))
+ continue;
+ if (iptype == ZS_EXCLUSIVE && gnicspec != 0 &&
+ (fetchprop(cur, DTD_ATTR_GNIC, gnic,
+ sizeof (gnic)) != Z_OK ||
+ strcmp(tabptr->zone_nwif_gnic, gnic) != 0))
+ continue;
if (iptype == ZS_SHARED && addrspec != 0 &&
(fetchprop(cur, DTD_ATTR_ADDRESS, address,
sizeof (address)) != Z_OK ||
!zonecfg_same_net_address(tabptr->zone_nwif_address,
address)))
@@ -2185,10 +2208,25 @@
(err = fetchprop(cur, DTD_ATTR_ADDRESS, tabptr->zone_nwif_address,
sizeof (tabptr->zone_nwif_address))) != Z_OK)
return (err);
if (iptype == ZS_EXCLUSIVE &&
+ (err = fetchprop(cur, DTD_ATTR_MAC, tabptr->zone_nwif_mac,
+ sizeof (tabptr->zone_nwif_mac))) != Z_OK)
+ return (err);
+
+ if (iptype == ZS_EXCLUSIVE &&
+ (err = fetchprop(cur, DTD_ATTR_VLANID, tabptr->zone_nwif_vlan_id,
+ sizeof (tabptr->zone_nwif_vlan_id))) != Z_OK)
+ return (err);
+
+ if (iptype == ZS_EXCLUSIVE &&
+ (err = fetchprop(cur, DTD_ATTR_GNIC, tabptr->zone_nwif_gnic,
+ sizeof (tabptr->zone_nwif_gnic))) != Z_OK)
+ return (err);
+
+ if (iptype == ZS_EXCLUSIVE &&
(err = fetchprop(cur, DTD_ATTR_ALLOWED_ADDRESS,
tabptr->zone_nwif_allowed_address,
sizeof (tabptr->zone_nwif_allowed_address))) != Z_OK)
return (err);
@@ -2195,17 +2233,44 @@
if ((err = fetchprop(cur, DTD_ATTR_DEFROUTER,
tabptr->zone_nwif_defrouter,
sizeof (tabptr->zone_nwif_defrouter))) != Z_OK)
return (err);
+ tabptr->zone_nwif_attrp = NULL;
+ for (val = cur->xmlChildrenNode; val != NULL; val = val->next) {
+ struct zone_res_attrtab *valptr;
+
+ valptr = (struct zone_res_attrtab *)malloc(
+ sizeof (struct zone_res_attrtab));
+ if (valptr == NULL)
+ return (Z_NOMEM);
+
+ valptr->zone_res_attr_name[0] =
+ valptr->zone_res_attr_value[0] = '\0';
+ if (zonecfg_add_res_attr(&(tabptr->zone_nwif_attrp), valptr)
+ != Z_OK) {
+ free(valptr);
+ break;
+ }
+
+ if ((fetchprop(val, DTD_ATTR_NAME, valptr->zone_res_attr_name,
+ sizeof (valptr->zone_res_attr_name)) != Z_OK))
+ break;
+ if ((fetchprop(val, DTD_ATTR_VALUE,
+ valptr->zone_res_attr_value,
+ sizeof (valptr->zone_res_attr_value)) != Z_OK))
+ break;
+ }
+
return (Z_OK);
}
static int
zonecfg_add_nwif_core(zone_dochandle_t handle, struct zone_nwiftab *tabptr)
{
- xmlNodePtr newnode, cur = handle->zone_dh_cur;
+ xmlNodePtr newnode, cur = handle->zone_dh_cur, valnode;
+ struct zone_res_attrtab *valptr;
int err;
newnode = xmlNewTextChild(cur, NULL, DTD_ELEM_NET, NULL);
if (strlen(tabptr->zone_nwif_address) > 0 &&
(err = newprop(newnode, DTD_ATTR_ADDRESS,
@@ -2217,17 +2282,44 @@
return (err);
if ((err = newprop(newnode, DTD_ATTR_PHYSICAL,
tabptr->zone_nwif_physical)) != Z_OK)
return (err);
/*
- * Do not add this property when it is not set, for backwards
- * compatibility and because it is optional.
+ * Do not add these properties when they are not set, for backwards
+ * compatibility and because they are optional.
*/
if ((strlen(tabptr->zone_nwif_defrouter) > 0) &&
((err = newprop(newnode, DTD_ATTR_DEFROUTER,
tabptr->zone_nwif_defrouter)) != Z_OK))
return (err);
+ if (strlen(tabptr->zone_nwif_mac) > 0 &&
+ (err = newprop(newnode, DTD_ATTR_MAC,
+ tabptr->zone_nwif_mac)) != Z_OK)
+ return (err);
+ if (strlen(tabptr->zone_nwif_vlan_id) > 0 &&
+ (err = newprop(newnode, DTD_ATTR_VLANID,
+ tabptr->zone_nwif_vlan_id)) != Z_OK)
+ return (err);
+ if (strlen(tabptr->zone_nwif_gnic) > 0 &&
+ (err = newprop(newnode, DTD_ATTR_GNIC,
+ tabptr->zone_nwif_gnic)) != Z_OK)
+ return (err);
+
+ for (valptr = tabptr->zone_nwif_attrp; valptr != NULL;
+ valptr = valptr->zone_res_attr_next) {
+ valnode = xmlNewTextChild(newnode, NULL, DTD_ELEM_NETATTR,
+ NULL);
+ err = newprop(valnode, DTD_ATTR_NAME,
+ valptr->zone_res_attr_name);
+ if (err != Z_OK)
+ return (err);
+ err = newprop(valnode, DTD_ATTR_VALUE,
+ valptr->zone_res_attr_value);
+ if (err != Z_OK)
+ return (err);
+ }
+
return (Z_OK);
}
int
zonecfg_add_nwif(zone_dochandle_t handle, struct zone_nwiftab *tabptr)
@@ -2248,11 +2340,12 @@
static int
zonecfg_delete_nwif_core(zone_dochandle_t handle, struct zone_nwiftab *tabptr)
{
xmlNodePtr cur = handle->zone_dh_cur;
- boolean_t addr_match, phys_match, allowed_addr_match;
+ boolean_t addr_match, phys_match, allowed_addr_match, mac_match,
+ gnic_match;
for (cur = cur->xmlChildrenNode; cur != NULL; cur = cur->next) {
if (xmlStrcmp(cur->name, DTD_ELEM_NET))
continue;
@@ -2260,12 +2353,17 @@
tabptr->zone_nwif_address);
allowed_addr_match = match_prop(cur, DTD_ATTR_ALLOWED_ADDRESS,
tabptr->zone_nwif_allowed_address);
phys_match = match_prop(cur, DTD_ATTR_PHYSICAL,
tabptr->zone_nwif_physical);
+ mac_match = match_prop(cur, DTD_ATTR_MAC,
+ tabptr->zone_nwif_mac);
+ gnic_match = match_prop(cur, DTD_ATTR_GNIC,
+ tabptr->zone_nwif_gnic);
- if (addr_match && allowed_addr_match && phys_match) {
+ if ((addr_match || allowed_addr_match || mac_match ||
+ gnic_match) && phys_match) {
xmlUnlinkNode(cur);
xmlFreeNode(cur);
return (Z_OK);
}
}
@@ -2310,10 +2408,62 @@
return (err);
return (Z_OK);
}
+void
+zonecfg_free_res_attr_list(struct zone_res_attrtab *valtab)
+{
+ if (valtab == NULL)
+ return;
+ zonecfg_free_res_attr_list(valtab->zone_res_attr_next);
+ free(valtab);
+}
+
+int
+zonecfg_add_res_attr(struct zone_res_attrtab **headptr,
+ struct zone_res_attrtab *valtabptr)
+{
+ struct zone_res_attrtab *last, *old, *new;
+
+ last = *headptr;
+ for (old = last; old != NULL; old = old->zone_res_attr_next)
+ last = old; /* walk to the end of the list */
+ new = valtabptr; /* alloc'd by caller */
+ new->zone_res_attr_next = NULL;
+ if (last == NULL)
+ *headptr = new;
+ else
+ last->zone_res_attr_next = new;
+ return (Z_OK);
+}
+
+int
+zonecfg_remove_res_attr(struct zone_res_attrtab **headptr,
+ struct zone_res_attrtab *valtabptr)
+{
+ struct zone_res_attrtab *last, *this, *next;
+
+ last = *headptr;
+ for (this = last; this != NULL; this = this->zone_res_attr_next) {
+ if (strcmp(this->zone_res_attr_name,
+ valtabptr->zone_res_attr_name) == 0 &&
+ strcmp(this->zone_res_attr_value,
+ valtabptr->zone_res_attr_value) == 0) {
+ next = this->zone_res_attr_next;
+ if (this == *headptr)
+ *headptr = next;
+ else
+ last->zone_res_attr_next = next;
+ free(this);
+ return (Z_OK);
+ } else
+ last = this;
+ }
+ return (Z_NO_PROPERTY_ID);
+}
+
/*
* Must be a comma-separated list of alpha-numeric file system names.
*/
static int
zonecfg_valid_fs_allowed(const char *fsallowedp)
@@ -2459,11 +2609,11 @@
}
int
zonecfg_lookup_dev(zone_dochandle_t handle, struct zone_devtab *tabptr)
{
- xmlNodePtr cur, firstmatch;
+ xmlNodePtr cur, val, firstmatch;
int err;
char match[MAXPATHLEN];
if (tabptr == NULL)
return (Z_INVAL);
@@ -2504,25 +2654,67 @@
if ((err = fetchprop(cur, DTD_ATTR_MATCH, tabptr->zone_dev_match,
sizeof (tabptr->zone_dev_match))) != Z_OK)
return (err);
+ tabptr->zone_dev_attrp = NULL;
+ for (val = cur->xmlChildrenNode; val != NULL; val = val->next) {
+ struct zone_res_attrtab *valptr;
+
+ valptr = (struct zone_res_attrtab *)malloc(
+ sizeof (struct zone_res_attrtab));
+ if (valptr == NULL)
+ return (Z_NOMEM);
+
+ valptr->zone_res_attr_name[0] =
+ valptr->zone_res_attr_value[0] = '\0';
+ if (zonecfg_add_res_attr(&(tabptr->zone_dev_attrp), valptr)
+ != Z_OK) {
+ free(valptr);
+ break;
+ }
+
+ if ((fetchprop(val, DTD_ATTR_NAME, valptr->zone_res_attr_name,
+ sizeof (valptr->zone_res_attr_name)) != Z_OK))
+ break;
+ if ((fetchprop(val, DTD_ATTR_VALUE,
+ valptr->zone_res_attr_value,
+ sizeof (valptr->zone_res_attr_value)) != Z_OK))
+ break;
+ }
+
return (Z_OK);
}
static int
zonecfg_add_dev_core(zone_dochandle_t handle, struct zone_devtab *tabptr)
{
- xmlNodePtr newnode, cur = handle->zone_dh_cur;
+ xmlNodePtr newnode, cur = handle->zone_dh_cur, valnode;
+ struct zone_res_attrtab *valptr;
int err;
newnode = xmlNewTextChild(cur, NULL, DTD_ELEM_DEVICE, NULL);
if ((err = newprop(newnode, DTD_ATTR_MATCH,
tabptr->zone_dev_match)) != Z_OK)
return (err);
+ for (valptr = tabptr->zone_dev_attrp; valptr != NULL;
+ valptr = valptr->zone_res_attr_next) {
+ valnode = xmlNewTextChild(newnode, NULL, DTD_ELEM_NETATTR,
+ NULL);
+ err = newprop(valnode, DTD_ATTR_NAME,
+ valptr->zone_res_attr_name);
+ if (err != Z_OK)
+ return (err);
+ err = newprop(valnode, DTD_ATTR_VALUE,
+ valptr->zone_res_attr_value);
+ if (err != Z_OK)
+ return (err);
+ }
+
+
return (Z_OK);
}
int
zonecfg_add_dev(zone_dochandle_t handle, struct zone_devtab *tabptr)
@@ -4716,11 +4908,12 @@
}
int
zonecfg_getnwifent(zone_dochandle_t handle, struct zone_nwiftab *tabptr)
{
- xmlNodePtr cur;
+ xmlNodePtr cur, val;
+ struct zone_res_attrtab *valptr;
int err;
if (handle == NULL)
return (Z_INVAL);
@@ -4752,17 +4945,58 @@
sizeof (tabptr->zone_nwif_physical))) != Z_OK) {
handle->zone_dh_cur = handle->zone_dh_top;
return (err);
}
+ if ((err = fetchprop(cur, DTD_ATTR_MAC, tabptr->zone_nwif_mac,
+ sizeof (tabptr->zone_nwif_mac))) != Z_OK) {
+ handle->zone_dh_cur = handle->zone_dh_top;
+ return (err);
+ }
+
+ if ((err = fetchprop(cur, DTD_ATTR_VLANID, tabptr->zone_nwif_vlan_id,
+ sizeof (tabptr->zone_nwif_vlan_id))) != Z_OK) {
+ handle->zone_dh_cur = handle->zone_dh_top;
+ return (err);
+ }
+
+ if ((err = fetchprop(cur, DTD_ATTR_GNIC, tabptr->zone_nwif_gnic,
+ sizeof (tabptr->zone_nwif_gnic))) != Z_OK) {
+ handle->zone_dh_cur = handle->zone_dh_top;
+ return (err);
+ }
+
if ((err = fetchprop(cur, DTD_ATTR_DEFROUTER,
tabptr->zone_nwif_defrouter,
sizeof (tabptr->zone_nwif_defrouter))) != Z_OK) {
handle->zone_dh_cur = handle->zone_dh_top;
return (err);
}
+ tabptr->zone_nwif_attrp = NULL;
+ for (val = cur->xmlChildrenNode; val != NULL; val = val->next) {
+ valptr = (struct zone_res_attrtab *)malloc(
+ sizeof (struct zone_res_attrtab));
+ if (valptr == NULL)
+ return (Z_NOMEM);
+
+ valptr->zone_res_attr_name[0] =
+ valptr->zone_res_attr_value[0] = '\0';
+ if (zonecfg_add_res_attr(&(tabptr->zone_nwif_attrp), valptr)
+ != Z_OK) {
+ free(valptr);
+ break;
+ }
+
+ if (fetchprop(val, DTD_ATTR_NAME, valptr->zone_res_attr_name,
+ sizeof (valptr->zone_res_attr_name)) != Z_OK)
+ break;
+ if (fetchprop(val, DTD_ATTR_VALUE, valptr->zone_res_attr_value,
+ sizeof (valptr->zone_res_attr_value)) != Z_OK)
+ break;
+ }
+
handle->zone_dh_cur = cur->next;
return (Z_OK);
}
int
@@ -4778,11 +5012,11 @@
}
int
zonecfg_getdevent(zone_dochandle_t handle, struct zone_devtab *tabptr)
{
- xmlNodePtr cur;
+ xmlNodePtr cur, val;
int err;
if (handle == NULL)
return (Z_INVAL);
@@ -4801,10 +5035,35 @@
sizeof (tabptr->zone_dev_match))) != Z_OK) {
handle->zone_dh_cur = handle->zone_dh_top;
return (err);
}
+ tabptr->zone_dev_attrp = NULL;
+ for (val = cur->xmlChildrenNode; val != NULL; val = val->next) {
+ struct zone_res_attrtab *valptr;
+
+ valptr = (struct zone_res_attrtab *)malloc(
+ sizeof (struct zone_res_attrtab));
+ if (valptr == NULL)
+ return (Z_NOMEM);
+
+ valptr->zone_res_attr_name[0] =
+ valptr->zone_res_attr_value[0] = '\0';
+ if (zonecfg_add_res_attr(&(tabptr->zone_dev_attrp), valptr)
+ != Z_OK) {
+ free(valptr);
+ break;
+ }
+
+ if ((fetchprop(val, DTD_ATTR_NAME, valptr->zone_res_attr_name,
+ sizeof (valptr->zone_res_attr_name)) != Z_OK))
+ break;
+ if ((fetchprop(val, DTD_ATTR_VALUE, valptr->zone_res_attr_value,
+ sizeof (valptr->zone_res_attr_value)) != Z_OK))
+ break;
+ }
+
handle->zone_dh_cur = cur->next;
return (Z_OK);
}
int
@@ -5528,10 +5787,168 @@
zonecfg_fini_handle(handle);
return (err);
}
+/*
+ * Atomically get a new zone_did value. The currently allocated value
+ * is stored in /etc/zones/did.txt. Lock the file, read the current value,
+ * increment, save the new value and unlock the file. Return the new value
+ * or -1 if there was an error. The ID namespace is large enough that we
+ * don't worry about recycling an ID when a zone is deleted.
+ */
+static zoneid_t
+new_zone_did()
+{
+ int fd;
+ int len;
+ int val;
+ struct flock lck;
+ char buf[80];
+
+ if ((fd = open(DEBUGID_FILE, O_RDWR | O_CREAT,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) < 0) {
+ perror("new_zone_did open failed");
+ return (-1);
+ }
+
+ /* Initialize the lock. */
+ lck.l_whence = SEEK_SET;
+ lck.l_start = 0;
+ lck.l_len = 0;
+
+ /* Wait until we acquire an exclusive lock on the file. */
+ lck.l_type = F_WRLCK;
+ if (fcntl(fd, F_SETLKW, &lck) == -1) {
+ perror("new_zone_did lock failed");
+ (void) close(fd);
+ return (-1);
+ }
+
+ /* Get currently allocated value */
+ len = read(fd, buf, sizeof (buf));
+ if (len == -1) {
+ perror("new_zone_did read failed");
+ val = -1;
+ } else {
+ if (lseek(fd, 0L, SEEK_SET) == -1) {
+ perror("new_zone_did seek failed");
+ val = -1;
+ } else {
+ if (len == 0) {
+ /* Just created the file, initialize at 1 */
+ val = 1;
+ } else {
+ val = atoi(buf);
+ val++;
+ }
+
+ (void) snprintf(buf, sizeof (buf), "%d\n", val);
+ len = strlen(buf);
+
+ /* Save newly allocated value */
+ if (write(fd, buf, len) == -1) {
+ perror("new_zone_did write failed");
+ val = -1;
+ }
+ }
+ }
+
+ /* Release the file lock. */
+ lck.l_type = F_UNLCK;
+ if (fcntl(fd, F_SETLK, &lck) == -1) {
+ perror("new_zone_did unlock failed");
+ val = -1;
+ }
+
+ if (close(fd) != 0)
+ perror("new_zone_did close failed");
+
+ return (val);
+}
+
+/*
+ * Called by zoneadmd to get the zone's debug ID.
+ * If the zone doesn't already have an ID, a new one is generated and
+ * persistently saved onto the zone. Normally either zoneadm or zonecfg
+ * will assign a new ID for the zone, so zoneadmd should never have to
+ * generate one, but we also handle that here just to be paranoid.
+ */
+zoneid_t
+zone_get_did(char *zone_name)
+{
+ int res;
+ zoneid_t new_did;
+ zone_dochandle_t handle;
+ char did_str[80];
+
+ if ((handle = zonecfg_init_handle()) == NULL)
+ return (getpid());
+
+ if (zonecfg_get_handle((char *)zone_name, handle) != Z_OK)
+ return (getpid());
+
+ res = getrootattr(handle, DTD_ATTR_DID, did_str, sizeof (did_str));
+
+ /* If the zone already has an assigned debug ID, return it. */
+ if (res == Z_OK && did_str[0] != '\0') {
+ zonecfg_fini_handle(handle);
+ return (atoi(did_str));
+ }
+
+ /*
+ * The zone doesn't have an assigned debug ID yet, generate one and
+ * save it as part of the zone definition.
+ */
+ if ((new_did = new_zone_did()) == -1) {
+ /*
+ * We should really never hit this block of code.
+ * Generating a new ID failed for some reason. Use the current
+ * pid as a temporary ID so that the zone can continue to boot
+ * but we don't persistently save this temporary ID on the zone.
+ */
+ zonecfg_fini_handle(handle);
+ return (getpid());
+ }
+
+ /* Now persistently save this new ID onto the zone. */
+ (void) snprintf(did_str, sizeof (did_str), "%d", new_did);
+ (void) setrootattr(handle, DTD_ATTR_DID, did_str);
+ (void) zonecfg_save(handle);
+
+ zonecfg_fini_handle(handle);
+ return (new_did);
+}
+
+zoneid_t
+zonecfg_get_did(zone_dochandle_t handle)
+{
+ char did_str[80];
+ int err;
+ zoneid_t did;
+
+ err = getrootattr(handle, DTD_ATTR_DID, did_str, sizeof (did_str));
+ if (err == Z_OK && did_str[0] != '\0')
+ did = atoi(did_str);
+ else
+ did = -1;
+
+ return (did);
+}
+
+void
+zonecfg_set_did(zone_dochandle_t handle)
+{
+ zoneid_t new_did;
+ char did_str[80];
+
+ if ((new_did = new_zone_did()) == -1)
+ return;
+ (void) snprintf(did_str, sizeof (did_str), "%d", new_did);
+ (void) setrootattr(handle, DTD_ATTR_DID, did_str);
+}
+
/*
* Return the appropriate root for the active /dev.
* For normal zone, the path is $ZONEPATH/root;
* for scratch zone, the dev path is $ZONEPATH/lu.
*/