On 8/25/23 07:57, Masahisa Kojima wrote:
On Thu, 24 Aug 2023 at 09:11, AKASHI Takahiro
<takahiro.aka...@linaro.org> wrote:

Hi Kojima-san,

On Wed, Aug 23, 2023 at 05:37:19PM +0900, Masahisa Kojima wrote:
This adds the URI device path option for 'boot add' subcommand.
User can add the URI load option for downloading ISO image file
or EFI application through network(e.g. HTTP).

Signed-off-by: Masahisa Kojima <masahisa.koj...@linaro.org>
---
  cmd/efidebug.c | 39 +++++++++++++++++++++++++++++++++++++++
  1 file changed, 39 insertions(+)

diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index 0be3af3e76..62f867df2a 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -829,6 +829,44 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
                       argc -= 1;
                       argv += 1;
                       break;
+             case 'u':
+             {
+                     char *pos;
+                     int uridp_len;
+                     struct efi_device_path_uri *uridp;
+
+                     if (argc <  3 || lo.label) {
+                             r = CMD_RET_USAGE;
+                             goto out;
+                     }
+                     id = (int)hextoul(argv[1], &endp);
+                     if (*endp != '\0' || id > 0xffff)
+                             return CMD_RET_USAGE;
+
+                     efi_create_indexed_name(var_name16, sizeof(var_name16),
+                                             "Boot", id);
+
+                     label = efi_convert_string(argv[2]);
+                     if (!label)
+                             return CMD_RET_FAILURE;
+                     lo.label = label;
+
+                     uridp_len = sizeof(struct efi_device_path) + 
strlen(argv[3]) + 1;
+                     fp_free = efi_alloc(uridp_len + sizeof(END));
+                     uridp = (struct efi_device_path_uri *)fp_free;
+                     uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+                     uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI;
+                     uridp->dp.length = uridp_len;
+                     strcpy(uridp->uri, argv[3]);
+                     pos = (char *)uridp + uridp_len;
+                     memcpy(pos, &END, sizeof(END));
+                     fp_size += uridp_len + sizeof(END);
+                     file_path = (struct efi_device_path *)uridp;
+                     argc -= 3;
+                     argv += 3;
+                     break;
+             }
+
               default:
                       r = CMD_RET_USAGE;
                       goto out;
@@ -1492,6 +1530,7 @@ static char efidebug_help_text[] =
       "  -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n"
       "  -i|-I <interface> <devnum>[:<part>] <initrd file path>\n"
       "  (-b, -i for short form device path)\n"
+     "  -u <bootid> <label> <uri>\n"

It might be a matter of personal preference, but
since the current syntax of efidebug is already much complex,
I don't want to add more options unless it's necessary.
How about re-using "-B" option, say
    => efidebug -B 3 debian-netinst uri - https://foo.com/baa

You just replace one set of alternatives (-B -b -u) against another
(mmc, nvme, uri, ...). I cannot see that this reduces complexity.


I understand your concern. OK, I will add uri in -b|B and also update
documentation.

It is unclear to me what the difference between -b and -B shall be for
URIs. Would -B be with the device path of the network device
(/VenHw()/MAC()/URI()) and -b without (/URI())?

Best regards

Heinrich


Thanks,
Masahisa Kojima


BTW, I think that <bootid> and <label> should have been moved out of "-b|B"
when Ilias introduced this new syntax.

-Takahiro Akashi


       "  -s '<optional data>'\n"
       "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n"
       "  - delete UEFI BootXXXX variables\n"
--
2.34.1


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