[PATCH proxmox-backup 1/1] fix #7541: zfs status: account for msg directly after status in vdev parser

[Nicolas Frey <n.frey@proxmox.com>]

so spares that have the status `INUSE` parse correctly.

adds a line to the mock config in the `test_zpool_status_parser_spares`
test containing an example of a vdev that would be `INUSE`.

Fixes: https://bugzilla.proxmox.com/show_bug.cgi?id=7541
Signed-off-by: Nicolas Frey <n.frey@proxmox.com>
---
 src/tools/disks/zpool_status.rs | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/src/tools/disks/zpool_status.rs b/src/tools/disks/zpool_status.rs
index 05ef5d80..071431f2 100644
--- a/src/tools/disks/zpool_status.rs
+++ b/src/tools/disks/zpool_status.rs
@@ -14,7 +14,7 @@ use nom::{
     character::complete::line_ending,
     combinator::opt,
     multi::{many0, many1},
-    sequence::preceded,
+    sequence::{preceded, tuple},
 };

 #[derive(Debug, Serialize, Deserialize)]
@@ -66,33 +66,37 @@ fn parse_zpool_status_vdev(i: &str) -> IResult<&str, ZFSPoolVDevState> {
     }

     let (i, state) = preceded(multispace1, notspace1)(i)?;
-    if let Ok((n, _)) = preceded(multispace0, line_ending)(i) {
-        // spares
+    if let Ok((n, (read, write, cksum, msg, _))) = tuple((
+        preceded(multispace1, parse_u64),
+        preceded(multispace1, parse_u64),
+        preceded(multispace1, parse_u64),
+        opt(preceded(multispace1, take_while1(|c: char| c != '\n'))),
+        line_ending,
+    ))(i)
+    {
         let vdev = ZFSPoolVDevState {
             name: vdev_name.to_string(),
             lvl: indent_level,
             state: Some(state.to_string()),
-            read: None,
-            write: None,
-            cksum: None,
-            msg: None,
+            read: Some(read),
+            write: Some(write),
+            cksum: Some(cksum),
+            msg: msg.map(String::from),
         };
         return Ok((n, vdev));
     }

-    let (i, read) = preceded(multispace1, parse_u64)(i)?;
-    let (i, write) = preceded(multispace1, parse_u64)(i)?;
-    let (i, cksum) = preceded(multispace1, parse_u64)(i)?;
-    let (i, msg) = opt(preceded(multispace1, take_while(|c| c != '\n')))(i)?;
+    // spares
+    let (i, msg) = opt(preceded(multispace1, take_while1(|c: char| c != '\n')))(i)?;
     let (i, _) = line_ending(i)?;

     let vdev = ZFSPoolVDevState {
         name: vdev_name.to_string(),
         lvl: indent_level,
         state: Some(state.to_string()),
-        read: Some(read),
-        write: Some(write),
-        cksum: Some(cksum),
+        read: None,
+        write: None,
+        cksum: None,
         msg: msg.map(String::from),
     };

@@ -490,6 +494,7 @@ config:
         spares
           /dev/sdb     AVAIL
           /dev/sdc     AVAIL
+          /dev/sdd     INUSE    currently in use

 errors: No known data errors
 "###;
--
2.47.3