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grub2/0059-add-bootpath-parser-for-open-firmware.patch

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From 1a768cc5a65094e19c216caf92dd190317df25fc Mon Sep 17 00:00:00 2001
From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
Date: Tue, 4 Feb 2014 19:00:55 -0200
Subject: [PATCH 059/140] add bootpath parser for open firmware
It enables net boot even when there is no bootp/dhcp server.
* grub-core/net/drivers/ieee1275/ofnet.c: Add grub_ieee1275_parse_bootpath and
call it at grub_ieee1275_net_config_real.
* grub-core/kern/ieee1275/init.c: Add bootpath to grub_ieee1275_net_config.
* include/grub/ieee1275/ieee1275.h: Likewise.
---
ChangeLog | 13 ++++
grub-core/kern/ieee1275/init.c | 7 +--
grub-core/net/drivers/ieee1275/ofnet.c | 107 ++++++++++++++++++++++++++++++++-
include/grub/ieee1275/ieee1275.h | 5 +-
4 files changed, 125 insertions(+), 7 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 63f5aa3..5237631 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,18 @@
2014-02-04 Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
+ Add bootpath parser for open firmware.
+
+ It enables net boot even when there is no bootp/dhcp server.
+
+ * grub-core/net/drivers/ieee1275/ofnet.c: Add grub_ieee1275_parse_bootpath
+ and call it at grub_ieee1275_net_config_real.
+ * grub-core/kern/ieee1275/init.c: Add bootpath to
+ grub_ieee1275_net_config.
+ * include/grub/ieee1275/ieee1275.h: Likewise.
+
+
+2014-02-04 Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
+
Add grub_env_set_net_property function.
* grub-core/net/bootp.c: Remove set_env_limn_ro.
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 89b2822..d5bd74d 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -80,9 +80,8 @@ grub_translate_ieee1275_path (char *filepath)
}
}
-void (*grub_ieee1275_net_config) (const char *dev,
- char **device,
- char **path);
+void (*grub_ieee1275_net_config) (const char *dev, char **device, char **path,
+ char *bootpath);
void
grub_machine_get_bootlocation (char **device, char **path)
{
@@ -126,7 +125,7 @@ grub_machine_get_bootlocation (char **device, char **path)
*ptr = 0;
if (grub_ieee1275_net_config)
- grub_ieee1275_net_config (canon, device, path);
+ grub_ieee1275_net_config (canon, device, path, bootpath);
grub_free (dev);
grub_free (canon);
}
diff --git a/grub-core/net/drivers/ieee1275/ofnet.c b/grub-core/net/drivers/ieee1275/ofnet.c
index 4483c91..eea8e71 100644
--- a/grub-core/net/drivers/ieee1275/ofnet.c
+++ b/grub-core/net/drivers/ieee1275/ofnet.c
@@ -127,8 +127,111 @@ bootp_response_properties[] =
{ .name = "bootpreply-packet", .offset = 0x2a},
};
+enum
+{
+ BOOTARGS_SERVER_ADDR,
+ BOOTARGS_FILENAME,
+ BOOTARGS_CLIENT_ADDR,
+ BOOTARGS_GATEWAY_ADDR,
+ BOOTARGS_BOOTP_RETRIES,
+ BOOTARGS_TFTP_RETRIES,
+ BOOTARGS_SUBNET_MASK,
+ BOOTARGS_BLOCKSIZE
+};
+
+static int
+grub_ieee1275_parse_bootpath (const char *devpath, char *bootpath,
+ char **device, struct grub_net_card **card)
+{
+ char *args;
+ char *comma_char = 0;
+ char *equal_char = 0;
+ grub_size_t field_counter = 0;
+
+ grub_net_network_level_address_t client_addr, gateway_addr, subnet_mask;
+ grub_net_link_level_address_t hw_addr;
+ grub_net_interface_flags_t flags = 0;
+ struct grub_net_network_level_interface *inter;
+
+ hw_addr.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
+
+ args = bootpath + grub_strlen (devpath) + 1;
+ do
+ {
+ comma_char = grub_strchr (args, ',');
+ if (comma_char != 0)
+ *comma_char = 0;
+
+ /* Check if it's an option (like speed=auto) and not a default parameter */
+ equal_char = grub_strchr (args, '=');
+ if (equal_char != 0)
+ {
+ *equal_char = 0;
+ grub_env_set_net_property ((*card)->name, args, equal_char + 1,
+ grub_strlen(equal_char + 1));
+ *equal_char = '=';
+ }
+ else
+ {
+ switch (field_counter++)
+ {
+ case BOOTARGS_SERVER_ADDR:
+ *device = grub_xasprintf ("tftp,%s", args);
+ if (!*device)
+ return grub_errno;
+ break;
+
+ case BOOTARGS_CLIENT_ADDR:
+ grub_net_resolve_address (args, &client_addr);
+ break;
+
+ case BOOTARGS_GATEWAY_ADDR:
+ grub_net_resolve_address (args, &gateway_addr);
+ break;
+
+ case BOOTARGS_SUBNET_MASK:
+ grub_net_resolve_address (args, &subnet_mask);
+ break;
+ }
+ }
+ args = comma_char + 1;
+ if (comma_char != 0)
+ *comma_char = ',';
+ } while (comma_char != 0);
+
+ if ((client_addr.ipv4 != 0) && (subnet_mask.ipv4 != 0))
+ {
+ grub_ieee1275_phandle_t devhandle;
+ grub_ieee1275_finddevice (devpath, &devhandle);
+ grub_ieee1275_get_property (devhandle, "mac-address",
+ hw_addr.mac, sizeof(hw_addr.mac), 0);
+ inter = grub_net_add_addr ((*card)->name, *card, &client_addr, &hw_addr,
+ flags);
+ grub_net_add_ipv4_local (inter,
+ __builtin_ctz (~grub_le_to_cpu32 (subnet_mask.ipv4)));
+ }
+
+ if (gateway_addr.ipv4 != 0)
+ {
+ grub_net_network_level_netaddress_t target;
+ char *rname;
+
+ target.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
+ target.ipv4.base = 0;
+ target.ipv4.masksize = 0;
+ rname = grub_xasprintf ("%s:default", ((*card)->name));
+ if (rname)
+ grub_net_add_route_gw (rname, target, gateway_addr);
+ else
+ return grub_errno;
+ }
+
+ return 0;
+}
+
static void
-grub_ieee1275_net_config_real (const char *devpath, char **device, char **path)
+grub_ieee1275_net_config_real (const char *devpath, char **device, char **path,
+ char *bootpath)
{
struct grub_net_card *card;
@@ -158,6 +261,8 @@ grub_ieee1275_net_config_real (const char *devpath, char **device, char **path)
}
grub_free (canon);
+ grub_ieee1275_parse_bootpath (devpath, bootpath, device, &card);
+
for (i = 0; i < ARRAY_SIZE (bootp_response_properties); i++)
if (grub_ieee1275_get_property_length (grub_ieee1275_chosen,
bootp_response_properties[i].name,
diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
index dc54bea..8e42513 100644
--- a/include/grub/ieee1275/ieee1275.h
+++ b/include/grub/ieee1275/ieee1275.h
@@ -70,8 +70,9 @@ struct grub_ieee1275_devalias
};
extern void (*EXPORT_VAR(grub_ieee1275_net_config)) (const char *dev,
- char **device,
- char **path);
+ char **device,
+ char **path,
+ char *bootargs);
/* Maps a device alias to a pathname. */
extern grub_ieee1275_phandle_t EXPORT_VAR(grub_ieee1275_chosen);
--
1.9.3
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