diff options
| author | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2021-07-29 23:45:23 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2021-08-10 00:25:44 +0300 |
| commit | e44773daf851dc2755144355723c1c305e7246a1 (patch) | |
| tree | a24e4d25aa9ce10b8f5027fed6635f2104c44f46 /net/sunrpc/sysfs.c | |
| parent | 5d46dd04cb68771f77ba66dbf6fd323a4a2ce00d (diff) | |
| download | linux-e44773daf851dc2755144355723c1c305e7246a1.tar.xz | |
SUNRPC: Add srcaddr as a file in sysfs
I don't support changing it right now, but it could be useful
information for clients with multiple network cards.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/sysfs.c')
| -rw-r--r-- | net/sunrpc/sysfs.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/net/sunrpc/sysfs.c b/net/sunrpc/sysfs.c index 64da3bfd28e6..2e7a53504974 100644 --- a/net/sunrpc/sysfs.c +++ b/net/sunrpc/sysfs.c @@ -100,6 +100,28 @@ static ssize_t rpc_sysfs_xprt_dstaddr_show(struct kobject *kobj, return ret + 1; } +static ssize_t rpc_sysfs_xprt_srcaddr_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *buf) +{ + struct rpc_xprt *xprt = rpc_sysfs_xprt_kobj_get_xprt(kobj); + struct sockaddr_storage saddr; + struct sock_xprt *sock; + ssize_t ret = -1; + + if (!xprt) + return 0; + + sock = container_of(xprt, struct sock_xprt, xprt); + if (kernel_getsockname(sock->sock, (struct sockaddr *)&saddr) < 0) + goto out; + + ret = sprintf(buf, "%pISc\n", &saddr); +out: + xprt_put(xprt); + return ret + 1; +} + static ssize_t rpc_sysfs_xprt_info_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) @@ -376,6 +398,9 @@ static const void *rpc_sysfs_xprt_namespace(struct kobject *kobj) static struct kobj_attribute rpc_sysfs_xprt_dstaddr = __ATTR(dstaddr, 0644, rpc_sysfs_xprt_dstaddr_show, rpc_sysfs_xprt_dstaddr_store); +static struct kobj_attribute rpc_sysfs_xprt_srcaddr = __ATTR(srcaddr, + 0644, rpc_sysfs_xprt_srcaddr_show, NULL); + static struct kobj_attribute rpc_sysfs_xprt_info = __ATTR(xprt_info, 0444, rpc_sysfs_xprt_info_show, NULL); @@ -384,6 +409,7 @@ static struct kobj_attribute rpc_sysfs_xprt_change_state = __ATTR(xprt_state, static struct attribute *rpc_sysfs_xprt_attrs[] = { &rpc_sysfs_xprt_dstaddr.attr, + &rpc_sysfs_xprt_srcaddr.attr, &rpc_sysfs_xprt_info.attr, &rpc_sysfs_xprt_change_state.attr, NULL, |