grub2/0200-efi-http-Enclose-literal-IPv6-addresses-in-square-br.patch
Petr Šabata 100e37f2e6 RHEL 9.0.0 Alpha bootstrap
The content of this branch was automatically imported from Fedora ELN
with the following as its source:
https://src.fedoraproject.org/rpms/grub2#f7e054f3d693af43a903faf33b70673f7aca4508
2020-10-15 09:48:35 +02:00

115 lines
4.0 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Thu, 5 Mar 2020 16:21:58 +0100
Subject: [PATCH] efi/http: Enclose literal IPv6 addresses in square brackets
According to RFC 2732 (https://www.ietf.org/rfc/rfc2732.txt), literal IPv6
addresses must be enclosed in square brackets. But GRUB currently does not
do this and is causing HTTP servers to send Bad Request (400) responses.
For example, the following is the HTTP stream when fetching a config file:
HEAD /EFI/BOOT/grub.cfg HTTP/1.1
Host: 2000:dead:beef:a::1
Accept: */*
User-Agent: UefiHttpBoot/1.0
HTTP/1.1 400 Bad Request
Date: Thu, 05 Mar 2020 14:46:02 GMT
Server: Apache/2.4.41 (Fedora) OpenSSL/1.1.1d
Connection: close
Content-Type: text/html; charset=iso-8859-1
and after enclosing the IPv6 address the HTTP request is successful:
HEAD /EFI/BOOT/grub.cfg HTTP/1.1
Host: [2000:dead:beef:a::1]
Accept: */*
User-Agent: UefiHttpBoot/1.0
HTTP/1.1 200 OK
Date: Thu, 05 Mar 2020 14:48:04 GMT
Server: Apache/2.4.41 (Fedora) OpenSSL/1.1.1d
Last-Modified: Thu, 27 Feb 2020 17:45:58 GMT
ETag: "206-59f924b24b1da"
Accept-Ranges: bytes
Content-Length: 518
Resolves: rhbz#1732765
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
grub-core/net/efi/http.c | 37 ++++++++++++++++++++++++++++---------
1 file changed, 28 insertions(+), 9 deletions(-)
diff --git a/grub-core/net/efi/http.c b/grub-core/net/efi/http.c
index 755b7a6d054..fc8cb25ae0a 100644
--- a/grub-core/net/efi/http.c
+++ b/grub-core/net/efi/http.c
@@ -158,13 +158,7 @@ efihttp_request (grub_efi_http_t *http, char *server, char *name, int use_https,
grub_efi_status_t status;
grub_efi_boot_services_t *b = grub_efi_system_table->boot_services;
char *url = NULL;
-
- request_headers[0].field_name = (grub_efi_char8_t *)"Host";
- request_headers[0].field_value = (grub_efi_char8_t *)server;
- request_headers[1].field_name = (grub_efi_char8_t *)"Accept";
- request_headers[1].field_value = (grub_efi_char8_t *)"*/*";
- request_headers[2].field_name = (grub_efi_char8_t *)"User-Agent";
- request_headers[2].field_value = (grub_efi_char8_t *)"UefiHttpBoot/1.0";
+ char *hostname = NULL;
{
grub_efi_ipv6_address_t address;
@@ -174,9 +168,24 @@ efihttp_request (grub_efi_http_t *http, char *server, char *name, int use_https,
const char *protocol = (use_https == 1) ? "https" : "http";
if (grub_efi_string_to_ip6_address (server, &address, &rest) && *rest == 0)
- url = grub_xasprintf ("%s://[%s]%s", protocol, server, name);
+ {
+ hostname = grub_xasprintf ("[%s]", server);
+ if (!hostname)
+ return GRUB_ERR_OUT_OF_MEMORY;
+
+ server = hostname;
+
+ url = grub_xasprintf ("%s://%s%s", protocol, server, name);
+ if (!url)
+ {
+ grub_free (hostname);
+ return GRUB_ERR_OUT_OF_MEMORY;
+ }
+ }
else
- url = grub_xasprintf ("%s://%s%s", protocol, server, name);
+ {
+ url = grub_xasprintf ("%s://%s%s", protocol, server, name);
+ }
if (!url)
{
@@ -199,6 +208,13 @@ efihttp_request (grub_efi_http_t *http, char *server, char *name, int use_https,
request_data.url = ucs2_url;
}
+ request_headers[0].field_name = (grub_efi_char8_t *)"Host";
+ request_headers[0].field_value = (grub_efi_char8_t *)server;
+ request_headers[1].field_name = (grub_efi_char8_t *)"Accept";
+ request_headers[1].field_value = (grub_efi_char8_t *)"*/*";
+ request_headers[2].field_name = (grub_efi_char8_t *)"User-Agent";
+ request_headers[2].field_value = (grub_efi_char8_t *)"UefiHttpBoot/1.0";
+
request_data.method = (headeronly > 0) ? GRUB_EFI_HTTPMETHODHEAD : GRUB_EFI_HTTPMETHODGET;
request_message.data.request = &request_data;
@@ -228,6 +244,9 @@ efihttp_request (grub_efi_http_t *http, char *server, char *name, int use_https,
status = efi_call_2 (http->request, http, &request_token);
+ if (hostname)
+ grub_free (hostname);
+
if (status != GRUB_EFI_SUCCESS)
{
efi_call_1 (b->close_event, request_token.event);