grub2/0230-Prepend-prefix-when-HTTP-path-is-relative.patch
Peter Jones c2f7a5e9af Update some more stuff again and whatnot.
Fix AArch64 machines with no RAM latched lower than 1GB
  Resolves: rhbz#1615969
Set http_path and http_url when HTTP booting
Hopefully slightly better error reporting in some cases
Better allocation of kernel+initramfs on x86_64 and aarch64
  Resolves: rhbz#1572126

Signed-off-by: Peter Jones <pjones@redhat.com>
2018-08-30 11:15:56 -04:00

138 lines
4.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stephen Benjamin <stephen@redhat.com>
Date: Thu, 16 Aug 2018 16:58:51 -0400
Subject: [PATCH] Prepend prefix when HTTP path is relative
This sets a couple of variables. With the url http://www.example.com/foo/bar :
http_path: /foo/bar
http_url: http://www.example.com/foo/bar
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/kern/main.c | 2 +-
grub-core/net/efi/http.c | 82 ++++++++++++++++++++++++++++++++++++------------
2 files changed, 63 insertions(+), 21 deletions(-)
diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
index da47b18b50e..fc8d8c6c9d4 100644
--- a/grub-core/kern/main.c
+++ b/grub-core/kern/main.c
@@ -131,7 +131,7 @@ grub_set_prefix_and_root (void)
{
char *fw_path;
- fw_path = grub_xasprintf ("(%s)/%s", fwdevice, fwpath);
+ fw_path = grub_xasprintf ("(%s)%s%s", fwdevice, fwpath[0] == '/' ? "" : "/", fwpath);
if (fw_path)
{
grub_env_set ("fw_path", fw_path);
diff --git a/grub-core/net/efi/http.c b/grub-core/net/efi/http.c
index 243acbaa35b..2a9624dacc4 100644
--- a/grub-core/net/efi/http.c
+++ b/grub-core/net/efi/http.c
@@ -9,10 +9,52 @@
static void
http_configure (struct grub_efi_net_device *dev, int prefer_ip6)
{
+ grub_efi_ipv6_address_t address;
grub_efi_http_config_data_t http_config;
grub_efi_httpv4_access_point_t httpv4_node;
grub_efi_httpv6_access_point_t httpv6_node;
grub_efi_status_t status;
+ int https;
+ char *http_url;
+ const char *rest, *http_server, *http_path = NULL;
+
+ http_server = grub_env_get ("root");
+ https = grub_strncmp (http_server, "https", 5) ? 1 : 0;
+
+ /* extract http server + port */
+ if (http_server)
+ {
+ http_server = grub_strchr (http_server, ',');
+ if (http_server)
+ http_server++;
+ }
+
+ /* fw_path is like (http,192.168.1.1:8000)/httpboot, extract path part */
+ http_path = grub_env_get ("fw_path");
+ if (http_path)
+ {
+ http_path = grub_strchr (http_path, ')');
+ if (http_path)
+ {
+ http_path++;
+ grub_env_unset ("http_path");
+ grub_env_set ("http_path", http_path);
+ }
+ }
+
+ if (http_server && http_path)
+ {
+ if (grub_efi_string_to_ip6_address (http_server, &address, &rest) && *rest == 0)
+ http_url = grub_xasprintf ("%s://[%s]%s", https ? "https" : "http", http_server, http_path);
+ else
+ http_url = grub_xasprintf ("%s://%s%s", https ? "https" : "http", http_server, http_path);
+ if (http_url)
+ {
+ grub_env_unset ("http_url");
+ grub_env_set ("http_url", http_url);
+ grub_free (http_url);
+ }
+ }
grub_efi_http_t *http = dev->http;
@@ -352,32 +394,32 @@ grub_efihttp_open (struct grub_efi_net_device *dev,
grub_err_t err;
grub_off_t size;
char *buf;
- char *root_url;
- grub_efi_ipv6_address_t address;
- const char *rest;
+ char *file_name;
+ const char *http_path;
- if (grub_efi_string_to_ip6_address (file->device->net->server, &address, &rest) && *rest == 0)
- root_url = grub_xasprintf ("%s://[%s]", type ? "https" : "http", file->device->net->server);
+ /* If path is relative, prepend http_path */
+ http_path = grub_env_get ("http_path");
+ if (http_path && file->device->net->name[0] != '/')
+ file_name = grub_xasprintf ("%s/%s", http_path, file->device->net->name);
else
- root_url = grub_xasprintf ("%s://%s", type ? "https" : "http", file->device->net->server);
- if (root_url)
- {
- grub_env_unset ("root_url");
- grub_env_set ("root_url", root_url);
- grub_free (root_url);
- }
- else
- {
- return grub_errno;
- }
+ file_name = grub_strdup (file->device->net->name);
- err = efihttp_request (dev->http, file->device->net->server, file->device->net->name, type, 1, 0);
+ if (!file_name)
+ return grub_errno;
+
+ err = efihttp_request (dev->http, file->device->net->server, file_name, type, 1, 0);
if (err != GRUB_ERR_NONE)
- return err;
+ {
+ grub_free (file_name);
+ return err;
+ }
- err = efihttp_request (dev->http, file->device->net->server, file->device->net->name, type, 0, &size);
+ err = efihttp_request (dev->http, file->device->net->server, file_name, type, 0, &size);
+ grub_free (file_name);
if (err != GRUB_ERR_NONE)
- return err;
+ {
+ return err;
+ }
buf = grub_malloc (size);
efihttp_read (dev, buf, size);