[PATCH v3 2/4] rpcctl: Add support for the xprtsec sysfs attribute

[Anna Schumaker <anna@kernel.org>]

From: Anna Schumaker <anna.schumaker@oracle.com>

This was recently added to the Linux kernel, so running rpcctl on
kernels that don't have this attribute will print out "unknown" in its
place instead.

Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
---
 tools/rpcctl/rpcctl.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/rpcctl/rpcctl.py b/tools/rpcctl/rpcctl.py
index 654b2f60a894..ce22e424b804 100755
--- a/tools/rpcctl/rpcctl.py
+++ b/tools/rpcctl/rpcctl.py
@@ -20,13 +20,13 @@ if not sunrpc.is_dir():
     sys.exit(1)
 
 
-def read_sysfs_file(path):
+def read_sysfs_file(path, *, missing="enoent"):
     """Read a sysfs file."""
     try:
         with open(path, 'r') as f:
             return f.readline().strip()
     except FileNotFoundError:
-        return "(enoent)"
+        return f"({missing})"
 
 
 def write_sysfs_file(path, input):
@@ -58,6 +58,7 @@ class Xprt:
         self.info = read_info_file(path / "xprt_info")
         self.dstaddr = read_sysfs_file(path / "dstaddr")
         self.srcaddr = read_sysfs_file(path / "srcaddr")
+        self.xprtsec = read_sysfs_file(path / "xprtsec", missing="unknown")
         self.read_state()
 
     def __lt__(self, rhs):
@@ -67,7 +68,8 @@ class Xprt:
     def _xprt(self):
         main = ", main" if self.info.get("main_xprt") else ""
         return f"{self.name}: {self.type}, {self.dstaddr}, " \
-               f"port {self.info['dst_port']}, state <{self.state}>{main}"
+               f"port {self.info['dst_port']}, sec {self.xprtsec}, " \
+               f"state <{self.state}>{main}"
 
     def _src_reqs(self):
         return f"	Source: {self.srcaddr}, port {self.info['src_port']}, " \
-- 
2.49.0