File 0003-ieee1275-change-the-logic-of-ieee1275_get_... of Package grub2

Overview Repositories Revisions Requests Users Attributes Meta

File 0003-ieee1275-change-the-logic-of-ieee1275_get_devargs.patch of Package grub2 (Revision 36059e0e3f1e71d0e5b7e63c72ce5863)

Currently displaying revision 36059e0e3f1e71d0e5b7e63c72ce5863 , Show latest

From 1729400ab816804a28ebf50cb1310607b2c4b75e Mon Sep 17 00:00:00 2001
From: Diego Domingos <diegodo@br.ibm.com>
Date: Fri, 25 Feb 2022 12:49:51 -0500
Subject: [PATCH 3/4] ieee1275: change the logic of ieee1275_get_devargs()

Usually grub will parse the PFW arguments by searching for the first occurence of the character ':'.
However, we can have this char more than once on NQN.
This patch changes the logic to find the last occurence of this char so we can get the proper values
for NVMeoFC
---
 grub-core/kern/ieee1275/openfw.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/grub-core/kern/ieee1275/openfw.c b/grub-core/kern/ieee1275/openfw.c
index f819bd106..655a71310 100644
--- a/grub-core/kern/ieee1275/openfw.c
+++ b/grub-core/kern/ieee1275/openfw.c
@@ -354,6 +354,13 @@ static char *
 grub_ieee1275_get_devargs (const char *path)
 {
   char *colon = grub_strchr (path, ':');
+  char *colon_check = colon;
+
+  /* Find the last occurence of colon */
+  while(colon_check){
+    colon = colon_check;
+    colon_check = grub_strchr (colon+1, ':');
+  }
 
   if (! colon)
     return 0;
@@ -368,6 +375,18 @@ grub_ieee1275_get_devname (const char *path)
   char *colon = grub_strchr (path, ':');
   int pathlen = grub_strlen (path);
   struct grub_ieee1275_devalias curalias;
+
+  /* Check some special cases */
+  if(grub_strstr(path, "nvme-of")){
+    char *namespace_split = grub_strstr(path,"/namespace@");
+    if(namespace_split){
+      colon = grub_strchr (namespace_split, ':');
+    } else {
+      colon = NULL;
+    }
+
+  }
+
   if (colon)
     pathlen = (int)(colon - path);
 
@@ -693,7 +712,7 @@ grub_ieee1275_get_boot_dev (void)
       return NULL;
     }
 
-  bootpath = (char *) grub_malloc ((grub_size_t) bootpath_size + 64);
+  bootpath = (char *) grub_malloc ((grub_size_t) bootpath_size + 64 + 256);
   if (! bootpath)
     {
       grub_print_error ();
-- 
2.35.3

Places

File 0003-ieee1275-change-the-logic-of-ieee1275_get_devargs.patch of Package grub2 (Revision 36059e0e3f1e71d0e5b7e63c72ce5863)

Places