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sunrpc: Add a sysfs attr for xprtsec

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This allows the admin to check the TLS configuration for each xprt.

Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Link: https://lore.kernel.org/r/20250207204225.594002-3-anna@kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Anna Schumaker 2025-02-07 15:42:22 -05:00 committed by Trond Myklebust
parent e171b96500
commit 41cb320b81
1 changed files with 29 additions and 0 deletions
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29
net/sunrpc/sysfs.c
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@ -129,6 +129,31 @@ static ssize_t rpc_sysfs_xprt_srcaddr_show(struct kobject *kobj,
return ret;
}
static const char *xprtsec_strings[] = {
[RPC_XPRTSEC_NONE] = "none",
[RPC_XPRTSEC_TLS_ANON] = "tls-anon",
[RPC_XPRTSEC_TLS_X509] = "tls-x509",
};
static ssize_t rpc_sysfs_xprt_xprtsec_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *buf)
{
struct rpc_xprt *xprt = rpc_sysfs_xprt_kobj_get_xprt(kobj);
ssize_t ret;
if (!xprt) {
ret = sprintf(buf, "<closed>\n");
goto out;
}
ret = sprintf(buf, "%s\n", xprtsec_strings[xprt->xprtsec.policy]);
xprt_put(xprt);
out:
return ret;
}
static ssize_t rpc_sysfs_xprt_info_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
@ -404,6 +429,9 @@ static struct kobj_attribute rpc_sysfs_xprt_dstaddr = __ATTR(dstaddr,
static struct kobj_attribute rpc_sysfs_xprt_srcaddr = __ATTR(srcaddr,
0644, rpc_sysfs_xprt_srcaddr_show, NULL);
static struct kobj_attribute rpc_sysfs_xprt_xprtsec = __ATTR(xprtsec,
0644, rpc_sysfs_xprt_xprtsec_show, NULL);
static struct kobj_attribute rpc_sysfs_xprt_info = __ATTR(xprt_info,
0444, rpc_sysfs_xprt_info_show, NULL);
@ -413,6 +441,7 @@ 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_xprtsec.attr,
&rpc_sysfs_xprt_info.attr,
&rpc_sysfs_xprt_change_state.attr,
NULL,