212 lines
6.9 KiB
Diff
212 lines
6.9 KiB
Diff
From 1a768cc5a65094e19c216caf92dd190317df25fc Mon Sep 17 00:00:00 2001
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From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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Date: Tue, 4 Feb 2014 19:00:55 -0200
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Subject: [PATCH 059/125] add bootpath parser for open firmware
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It enables net boot even when there is no bootp/dhcp server.
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* grub-core/net/drivers/ieee1275/ofnet.c: Add grub_ieee1275_parse_bootpath and
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call it at grub_ieee1275_net_config_real.
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* grub-core/kern/ieee1275/init.c: Add bootpath to grub_ieee1275_net_config.
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* include/grub/ieee1275/ieee1275.h: Likewise.
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---
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ChangeLog | 13 ++++
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grub-core/kern/ieee1275/init.c | 7 +--
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grub-core/net/drivers/ieee1275/ofnet.c | 107 ++++++++++++++++++++++++++++++++-
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include/grub/ieee1275/ieee1275.h | 5 +-
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4 files changed, 125 insertions(+), 7 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 63f5aa3..5237631 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,18 @@
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2014-02-04 Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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+ Add bootpath parser for open firmware.
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+
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+ It enables net boot even when there is no bootp/dhcp server.
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+
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+ * grub-core/net/drivers/ieee1275/ofnet.c: Add grub_ieee1275_parse_bootpath
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+ and call it at grub_ieee1275_net_config_real.
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+ * grub-core/kern/ieee1275/init.c: Add bootpath to
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+ grub_ieee1275_net_config.
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+ * include/grub/ieee1275/ieee1275.h: Likewise.
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+
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+
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+2014-02-04 Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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+
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Add grub_env_set_net_property function.
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* grub-core/net/bootp.c: Remove set_env_limn_ro.
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diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
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index 89b2822..d5bd74d 100644
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--- a/grub-core/kern/ieee1275/init.c
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+++ b/grub-core/kern/ieee1275/init.c
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@@ -80,9 +80,8 @@ grub_translate_ieee1275_path (char *filepath)
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}
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}
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-void (*grub_ieee1275_net_config) (const char *dev,
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- char **device,
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- char **path);
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+void (*grub_ieee1275_net_config) (const char *dev, char **device, char **path,
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+ char *bootpath);
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void
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grub_machine_get_bootlocation (char **device, char **path)
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{
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@@ -126,7 +125,7 @@ grub_machine_get_bootlocation (char **device, char **path)
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*ptr = 0;
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if (grub_ieee1275_net_config)
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- grub_ieee1275_net_config (canon, device, path);
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+ grub_ieee1275_net_config (canon, device, path, bootpath);
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grub_free (dev);
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grub_free (canon);
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}
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diff --git a/grub-core/net/drivers/ieee1275/ofnet.c b/grub-core/net/drivers/ieee1275/ofnet.c
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index 4483c91..eea8e71 100644
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--- a/grub-core/net/drivers/ieee1275/ofnet.c
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+++ b/grub-core/net/drivers/ieee1275/ofnet.c
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@@ -127,8 +127,111 @@ bootp_response_properties[] =
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{ .name = "bootpreply-packet", .offset = 0x2a},
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};
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+enum
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+{
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+ BOOTARGS_SERVER_ADDR,
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+ BOOTARGS_FILENAME,
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+ BOOTARGS_CLIENT_ADDR,
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+ BOOTARGS_GATEWAY_ADDR,
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+ BOOTARGS_BOOTP_RETRIES,
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+ BOOTARGS_TFTP_RETRIES,
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+ BOOTARGS_SUBNET_MASK,
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+ BOOTARGS_BLOCKSIZE
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+};
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+
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+static int
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+grub_ieee1275_parse_bootpath (const char *devpath, char *bootpath,
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+ char **device, struct grub_net_card **card)
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+{
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+ char *args;
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+ char *comma_char = 0;
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+ char *equal_char = 0;
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+ grub_size_t field_counter = 0;
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+
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+ grub_net_network_level_address_t client_addr, gateway_addr, subnet_mask;
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+ grub_net_link_level_address_t hw_addr;
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+ grub_net_interface_flags_t flags = 0;
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+ struct grub_net_network_level_interface *inter;
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+
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+ hw_addr.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
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+
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+ args = bootpath + grub_strlen (devpath) + 1;
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+ do
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+ {
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+ comma_char = grub_strchr (args, ',');
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+ if (comma_char != 0)
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+ *comma_char = 0;
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+
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+ /* Check if it's an option (like speed=auto) and not a default parameter */
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+ equal_char = grub_strchr (args, '=');
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+ if (equal_char != 0)
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+ {
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+ *equal_char = 0;
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+ grub_env_set_net_property ((*card)->name, args, equal_char + 1,
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+ grub_strlen(equal_char + 1));
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+ *equal_char = '=';
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+ }
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+ else
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+ {
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+ switch (field_counter++)
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+ {
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+ case BOOTARGS_SERVER_ADDR:
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+ *device = grub_xasprintf ("tftp,%s", args);
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+ if (!*device)
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+ return grub_errno;
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+ break;
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+
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+ case BOOTARGS_CLIENT_ADDR:
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+ grub_net_resolve_address (args, &client_addr);
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+ break;
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+
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+ case BOOTARGS_GATEWAY_ADDR:
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+ grub_net_resolve_address (args, &gateway_addr);
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+ break;
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+
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+ case BOOTARGS_SUBNET_MASK:
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+ grub_net_resolve_address (args, &subnet_mask);
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+ break;
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+ }
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+ }
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+ args = comma_char + 1;
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+ if (comma_char != 0)
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+ *comma_char = ',';
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+ } while (comma_char != 0);
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+
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+ if ((client_addr.ipv4 != 0) && (subnet_mask.ipv4 != 0))
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+ {
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+ grub_ieee1275_phandle_t devhandle;
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+ grub_ieee1275_finddevice (devpath, &devhandle);
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+ grub_ieee1275_get_property (devhandle, "mac-address",
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+ hw_addr.mac, sizeof(hw_addr.mac), 0);
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+ inter = grub_net_add_addr ((*card)->name, *card, &client_addr, &hw_addr,
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+ flags);
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+ grub_net_add_ipv4_local (inter,
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+ __builtin_ctz (~grub_le_to_cpu32 (subnet_mask.ipv4)));
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+ }
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+
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+ if (gateway_addr.ipv4 != 0)
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+ {
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+ grub_net_network_level_netaddress_t target;
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+ char *rname;
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+
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+ target.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
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+ target.ipv4.base = 0;
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+ target.ipv4.masksize = 0;
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+ rname = grub_xasprintf ("%s:default", ((*card)->name));
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+ if (rname)
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+ grub_net_add_route_gw (rname, target, gateway_addr);
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+ else
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+ return grub_errno;
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+ }
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+
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+ return 0;
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+}
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+
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static void
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-grub_ieee1275_net_config_real (const char *devpath, char **device, char **path)
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+grub_ieee1275_net_config_real (const char *devpath, char **device, char **path,
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+ char *bootpath)
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{
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struct grub_net_card *card;
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@@ -158,6 +261,8 @@ grub_ieee1275_net_config_real (const char *devpath, char **device, char **path)
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}
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grub_free (canon);
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+ grub_ieee1275_parse_bootpath (devpath, bootpath, device, &card);
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+
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for (i = 0; i < ARRAY_SIZE (bootp_response_properties); i++)
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if (grub_ieee1275_get_property_length (grub_ieee1275_chosen,
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bootp_response_properties[i].name,
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diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
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index dc54bea..8e42513 100644
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--- a/include/grub/ieee1275/ieee1275.h
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+++ b/include/grub/ieee1275/ieee1275.h
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@@ -70,8 +70,9 @@ struct grub_ieee1275_devalias
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};
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extern void (*EXPORT_VAR(grub_ieee1275_net_config)) (const char *dev,
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- char **device,
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- char **path);
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+ char **device,
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+ char **path,
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+ char *bootargs);
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/* Maps a device alias to a pathname. */
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extern grub_ieee1275_phandle_t EXPORT_VAR(grub_ieee1275_chosen);
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--
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1.9.0
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