提交 55b3286d 编写于 作者: M Masatake YAMATO 提交者: David Teigland

dlm: show addresses in configfs

Display all addresses the dlm is using for the local node
from the configfs file config/dlm/<cluster>/comms/<comm>/addr_list
Also make the addr file write only.
Signed-off-by: NMasatake YAMATO <yamato@redhat.com>
Signed-off-by: NDavid Teigland <teigland@redhat.com>
上级 0e90ed0e
...@@ -28,7 +28,8 @@ ...@@ -28,7 +28,8 @@
* /config/dlm/<cluster>/spaces/<space>/nodes/<node>/weight * /config/dlm/<cluster>/spaces/<space>/nodes/<node>/weight
* /config/dlm/<cluster>/comms/<comm>/nodeid * /config/dlm/<cluster>/comms/<comm>/nodeid
* /config/dlm/<cluster>/comms/<comm>/local * /config/dlm/<cluster>/comms/<comm>/local
* /config/dlm/<cluster>/comms/<comm>/addr * /config/dlm/<cluster>/comms/<comm>/addr (write only)
* /config/dlm/<cluster>/comms/<comm>/addr_list (read only)
* The <cluster> level is useless, but I haven't figured out how to avoid it. * The <cluster> level is useless, but I haven't figured out how to avoid it.
*/ */
...@@ -80,6 +81,7 @@ static ssize_t comm_local_write(struct dlm_comm *cm, const char *buf, ...@@ -80,6 +81,7 @@ static ssize_t comm_local_write(struct dlm_comm *cm, const char *buf,
size_t len); size_t len);
static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf, static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf,
size_t len); size_t len);
static ssize_t comm_addr_list_read(struct dlm_comm *cm, char *buf);
static ssize_t node_nodeid_read(struct dlm_node *nd, char *buf); static ssize_t node_nodeid_read(struct dlm_node *nd, char *buf);
static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf, static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf,
size_t len); size_t len);
...@@ -190,6 +192,7 @@ enum { ...@@ -190,6 +192,7 @@ enum {
COMM_ATTR_NODEID = 0, COMM_ATTR_NODEID = 0,
COMM_ATTR_LOCAL, COMM_ATTR_LOCAL,
COMM_ATTR_ADDR, COMM_ATTR_ADDR,
COMM_ATTR_ADDR_LIST,
}; };
struct comm_attribute { struct comm_attribute {
...@@ -217,14 +220,22 @@ static struct comm_attribute comm_attr_local = { ...@@ -217,14 +220,22 @@ static struct comm_attribute comm_attr_local = {
static struct comm_attribute comm_attr_addr = { static struct comm_attribute comm_attr_addr = {
.attr = { .ca_owner = THIS_MODULE, .attr = { .ca_owner = THIS_MODULE,
.ca_name = "addr", .ca_name = "addr",
.ca_mode = S_IRUGO | S_IWUSR }, .ca_mode = S_IWUSR },
.store = comm_addr_write, .store = comm_addr_write,
}; };
static struct comm_attribute comm_attr_addr_list = {
.attr = { .ca_owner = THIS_MODULE,
.ca_name = "addr_list",
.ca_mode = S_IRUGO },
.show = comm_addr_list_read,
};
static struct configfs_attribute *comm_attrs[] = { static struct configfs_attribute *comm_attrs[] = {
[COMM_ATTR_NODEID] = &comm_attr_nodeid.attr, [COMM_ATTR_NODEID] = &comm_attr_nodeid.attr,
[COMM_ATTR_LOCAL] = &comm_attr_local.attr, [COMM_ATTR_LOCAL] = &comm_attr_local.attr,
[COMM_ATTR_ADDR] = &comm_attr_addr.attr, [COMM_ATTR_ADDR] = &comm_attr_addr.attr,
[COMM_ATTR_ADDR_LIST] = &comm_attr_addr_list.attr,
NULL, NULL,
}; };
...@@ -720,6 +731,50 @@ static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf, size_t len) ...@@ -720,6 +731,50 @@ static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf, size_t len)
return len; return len;
} }
static ssize_t comm_addr_list_read(struct dlm_comm *cm, char *buf)
{
ssize_t s;
ssize_t allowance;
int i;
struct sockaddr_storage *addr;
struct sockaddr_in *addr_in;
struct sockaddr_in6 *addr_in6;
/* Taken from ip6_addr_string() defined in lib/vsprintf.c */
char buf0[sizeof("AF_INET6 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255\n")];
/* Derived from SIMPLE_ATTR_SIZE of fs/configfs/file.c */
allowance = 4096;
buf[0] = '\0';
for (i = 0; i < cm->addr_count; i++) {
addr = cm->addr[i];
switch(addr->ss_family) {
case AF_INET:
addr_in = (struct sockaddr_in *)addr;
s = sprintf(buf0, "AF_INET %pI4\n", &addr_in->sin_addr.s_addr);
break;
case AF_INET6:
addr_in6 = (struct sockaddr_in6 *)addr;
s = sprintf(buf0, "AF_INET6 %pI6\n", &addr_in6->sin6_addr);
break;
default:
s = sprintf(buf0, "%s\n", "<UNKNOWN>");
break;
}
allowance -= s;
if (allowance >= 0)
strcat(buf, buf0);
else {
allowance += s;
break;
}
}
return 4096 - allowance;
}
static ssize_t show_node(struct config_item *i, struct configfs_attribute *a, static ssize_t show_node(struct config_item *i, struct configfs_attribute *a,
char *buf) char *buf)
{ {
......
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