Commit graph

217 commits

Author SHA1 Message Date
Andrei Borzenkov
a666c8bd18 bootp: ignore gateway_ip (relay) field.
From RFC1542:

   The 'giaddr' field is rather poorly named.  It exists to facilitate
   the transfer of BOOTREQUEST messages from a client, through BOOTP
   relay agents, to servers on different networks than the client.
   Similarly, it facilitates the delivery of BOOTREPLY messages from the
   servers, through BOOTP relay agents, back to the client.  In no case
   does it represent a general IP router to be used by the client.  A
   BOOTP client MUST set the 'giaddr' field to zero (0.0.0.0) in all
   BOOTREQUEST messages it generates.

   A BOOTP client MUST NOT interpret the 'giaddr' field of a BOOTREPLY
   message to be the IP address of an IP router.  A BOOTP client SHOULD
   completely ignore the contents of the 'giaddr' field in BOOTREPLY
   messages.

Leave code ifdef'd out for the time being in case we see regression.

Suggested by: Rink Springer <rink@rink.nu>
Closes: 43396
2015-05-17 22:38:30 +03:00
Andrei Borzenkov
49426e9fd2 efinet: open Simple Network Protocol exclusively
EDK2 network stack is based on Managed Network Protocol which is layered
on top of Simple Management Protocol and does background polling. This
polling races with grub for received (and probably trasmitted) packets
which causes either serious slowdown or complete failure to load files.

Open SNP device exclusively.  This destroys all child MNP instances and
stops background polling.

Exclusive open cannot be done when enumerating cards, as it would destroy
PXE information we need to autoconfigure interface; and it cannot be done
during autoconfiguration as we need to do it for non-PXE boot as well. So
move SNP open to card ->open method and add matching ->close to clean up.

Based on patch from Mark Salter <msalter@redhat.com>

Also-By: Mark Salter <msalter@redhat.com>
Closes: 41731
2015-05-07 20:37:17 +03:00
Andrei Borzenkov
c52ae40570 efinet: skip virtual IPv4 and IPv6 devices when enumerating cards
EDK2 PXE driver creates two child devices - IPv4 and IPv6 - with
bound SNP instance. This means we get three cards for every physical
adapter when enumerating. Not only is this confusing, this may result
in grub ignoring packets that come in via the "wrong" card.

Example of device hierarchy is

 Ctrl[91] PciRoot(0x0)/Pci(0x3,0x0)
   Ctrl[95] PciRoot(0x0)/Pci(0x3,0x0)/MAC(525400123456,0x1)
     Ctrl[B4] PciRoot(0x0)/Pci(0x3,0x0)/MAC(525400123456,0x1)/IPv4(0.0.0.0)
     Ctrl[BC] PciRoot(0x0)/Pci(0x3,0x0)/MAC(525400123456,0x1)/IPv6(0000:0000:0000:0000:0000:0000:0000:0000)

Skip PXE created virtual devices when enumerating cards. Make sure to
find real card when applying initial autoconfiguration during PXE boot,
this information is associated with one of child devices.
2015-05-07 20:37:17 +03:00
Andrei Borzenkov
16a7e723ea convert to, not from, CPU byte order in DNS receive function 2015-05-07 20:33:28 +03:00
Andrei Borzenkov
cc699535e5 Revert "efinet: memory leak on module removal"
This reverts commits 47b2bee3ef
and 8d3c4544ff. It is not safe
to free allocated cards, dangling pointers main remain. Such
cleanup requires more changes in net core.
2015-05-04 09:17:59 +03:00
Andrei Borzenkov
47b2bee3ef efinet: cannot free const char * pointer 2015-05-04 08:39:29 +03:00
Andrei Borzenkov
8d3c4544ff efinet: memory leak on module removal 2015-05-04 08:08:57 +03:00
Andrei Borzenkov
ebd92af8c3 net: trivial grub_cpu_to_XX_compile_time cleanup 2015-03-27 18:58:57 +03:00
Martin Wilck
cf2b4a36c4 efinet: Check for immediate completition.
This both speeds GRUB up and workarounds unexpected EFI behaviour.
2015-03-27 14:27:56 +01:00
Vladimir Serbinenko
63034d3261 arp, icmp: Fix handling in case of oversized or invalid packets.
This restrict ARP handling to MAC and IP addresses but in practice we need
only this case anyway and other cases are very rar if exist at all. It makes
code much simpler and less error-prone.
2015-03-27 12:18:25 +01:00
Vladimir Serbinenko
fe6695b7d6 emunet: Fix init error checking.
Otherwise emunet doesn't expose any cards.
2015-03-20 12:59:00 +01:00
Andrei Borzenkov
12abe75aa0 net/pxe: fix error condition
Test return value of grub_netbuff_reserve(), buf itself cannot be
NULL here.

Found by: Coverity scan.
2015-01-30 22:39:11 +03:00
Andrei Borzenkov
b40fde29a4 net/ip: check result of grub_netbuff_push
Found by: Coverity scan.
2015-01-30 22:09:51 +03:00
Curtis Larsen
06eadf5ebf fix double free in grub_net_recv_tcp_packet
Using the http module to download config files, produces memory errors,
after the config file is downloaded.

The error was traced to the tcp stack in grub-core/net/tcp.c. The wrong
netbuff pointer was being freed in the clean up loop.

Changing the code to free the correct netbuff pointer removes the runtime
error.

Closes 42765.
2014-12-07 11:28:57 +03:00
Michael Chang
7c4b6b7bb4 send router solicitation for ipv6 address autoconf v2
Many routers have long router advertisment interval configured by
default. The Neighbor Discovery protocol (RFC4861) has defined default
MaxRtrAdvInterval value as 600 seconds and
MinRtrAdvInterval as 0.33*MaxRtrAdvInterval. This makes
net_ipv6_autoconf fails more often than not as currently it passively
listens the RA message to perfom address autoconfiguration.

This patch tries to send router solicitation to overcome the problem of
long RA interval.

v2:
use cpu_to_be macro for network byte order conversion
add missing error handling
2014-11-28 20:21:34 +03:00
Michael Chang
72ec399ad8 icmp6 fix no respond to neighbor solicit message
The structure size used in grub_netbuff_pull to get the pointer to
option header is apparently wrong, which leads to subsequent range check
failed and therefore not responding to any neighbor solicit message in my
testing.
2014-11-03 20:03:04 +03:00
Andrey Borzenkov
954fe77163 cleanup: grub_cpu_to_XXX_compile_time for constants
This tries to catch all cases where grub_cpu_to_XXX was used for constant
expressions (including sizeof).
2014-09-22 20:47:10 +04:00
Paulo Flabiano Smorigo
9585647a25 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 19:02:16 -02:00
Paulo Flabiano Smorigo
e4dbf247b6 add grub_env_set_net_property function
* grub-core/net/bootp.c: Remove set_env_limn_ro.
* grub-core/net/net.c: Add grub_env_set_net_property.
* include/grub/net.h: Likewise.
2014-02-04 18:41:38 -02:00
Paulo Flabiano Smorigo
6f65e36cc4 increase network try interval gradually
* grub-core/net/arp.c (grub_net_arp_send_request): Increase network try
interval gradually.
* grub-core/net/icmp6.c (grub_net_icmp6_send_request): Likewise.
* grub-core/net/net.c (grub_net_fs_read_real): Likewise.
* grub-core/net/tftp.c (tftp_open): Likewise.
* include/grub/net.h (GRUB_NET_INTERVAL_ADDITION): New define.
2014-01-21 11:06:35 -02:00
Paulo Flabiano Smorigo
d99d2f8416 change stop condition to avoid infinite loops
In net/net.c there is a while (1) that only exits if there is a stop
condition and more then 10 packages or if there is no package received.

If GRUB is idle and enter in this loop, the only condition to leave is
if it doesn't have incoming packages. In a network with heavy traffic
this never happens.
2014-01-21 10:54:49 -02:00
Vladimir Serbinenko
17b4355943 * grub-core/net/bootp.c (grub_cmd_dhcpopt): Use snprintf where it
was intended.
2013-12-21 13:35:28 +01:00
Vladimir Serbinenko
636977b089 Mark strings for translation and add remaining ones to exclude list. 2013-12-18 06:50:24 +01:00
Vladimir Serbinenko
7e47e27bd8 Add gcc_struct to all packed structures when compiling with mingw.
Just "packed" doesn't always pack the way we expect.
2013-12-15 14:14:30 +01:00
Vladimir Serbinenko
50b3a68db9 Remove grub_memalign on emu. 2013-12-08 18:12:20 +01:00
Vladimir Serbinenko
234d93464a * grub-core/disk/ieee1275/ofdisk.c: Remove variable length arrays.
* grub-core/net/drivers/ieee1275/ofnet.c: Likewise.
2013-12-04 08:10:01 +01:00
Vladimir Serbinenko
7f084087b2 * grub-core/net/net.c (grub_net_route_unregister): Remove unused
function.
	* grub-core/loader/i386/xnu.c (hextoval): Likewise.
	* grub-core/disk/geli.c (ascii2hex): Likewise.
2013-11-07 19:31:22 +01:00
Vladimir Serbinenko
6d5a4ceefe * grub-core/net/bootp.c (OFFSET_OF): Explicitly cast to grub_size_t. 2013-11-07 01:11:36 +01:00
Vladimir Serbinenko
f06c2172c0 * grub-core/net/bootp.c (set_env_limn_ro): Make pointer const.
(parse_dhcp_vendor): Likewise.
2013-11-07 01:09:19 +01:00
Gustavo Luiz Duarte
9e236169e9
issue separate DNS queries for ipv4 and ipv6
Adding multiple questions on a single DNS query is not supportted by
most DNS servers. This patch issues two separate DNS queries
sequentially for ipv4 and then for ipv6.

Fixes: https://savannah.gnu.org/bugs/?39710

 * grub-core/net/bootp.c (parse_dhcp_vendor): Add DNS option.
 * grub-core/net/dns.c (grub_dns_qtype_id): New enum.
 * (grub_net_dns_lookup): Now using separated dns packages.
 * (grub_cmd_nslookup): Add error condition.
 * (grub_cmd_list_dns): Print DNS option.
 * (grub_cmd_add_dns): Add four parameters: --only-ipv4,
 * --only-ipv6, --prefer-ipv4, and --prefer-ipv6.
 * include/grub/net.h (grub_dns_option_t): New enum.
 * (grub_net_network_level_address): option added.

Also-by: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
2013-11-05 17:41:16 -02:00
Vladimir Serbinenko
eb03ede014 * grub-core/fs/ext2.c (grub_ext2_read_symlink): Use memcpy rather
strncpy.
	* grub-core/fs/jfs.c (grub_jfs_lookup_symlink): Likewise.
	* grub-core/kern/misc.c (grub_strncpy): Move from here ...
	* include/grub/misc.h (grub_strncpy): ... to here. Make inline.
	* grub-core/net/net.c (grub_net_addr_to_str): Use COMPILE_TIME_ASSERT
	+ strcpy rather than strncpy.
2013-11-01 18:44:46 +01:00
Vladimir Serbinenko
cf8d6bbd9e * grub-core/net/tftp.c: Retransmit ack when rereceiving old packet.
Try to handle more than 0xFFFF packets.
2013-10-27 19:15:37 +01:00
Vladimir Serbinenko
40f290606d * grub-core/net/dns.c (hash): Use unsigned arithmetic. 2013-10-25 20:26:27 +02:00
Paulo Flabiano Smorigo
84a0e9699f Add progress module to display load progress of files.
* grub-core/lib/progress.c: New file.
	* grub-core/Makefile.core.def (progress): New module.
	* grub-core/kern/file.c (grub_file_open): File name added.
	* (grub_file_read): Progress hook added.
	* grub-core/fs/cbfs.c (grub_cbfs_read): Likewise.
	* grub-core/fs/cpio_common.c (grub_cpio_read): Likewise.
	* grub-core/net/net.c (grub_net_fs_read_real): Likewise.
	* include/grub/file.h (struct grub_file): Add progress module
	* members.
	* include/grub/term.h (struct grub_term_output): Likewise.
	* grub-core/osdep/unix/emuconsole.c (grub_console_term_output):
	Terminal velocity added.
	* grub-core/osdep/windows/emuconsole.c (grub_console_term_output):
	* Likewise.
	* grub-core/term/arc/console.c (grub_console_term_output): Likewise.
	* grub-core/term/efi/console.c (grub_console_term_output): Likewise.
	* grub-core/term/gfxterm.c (grub_video_term): Likewise.
	* grub-core/term/i386/coreboot/cbmemc.c (grub_cbmemc_term_output):
	* Likewise.
	* grub-core/term/i386/pc/console.c (grub_console_term_output):
	* Likewise.
	* grub-core/term/i386/pc/vga_text.c (grub_vga_text_term): Likewise.
	* grub-core/term/ieee1275/console.c (grub_console_term_output):
	* Likewise.
	* grub-core/term/morse.c (grub_audio_term_output): Likewise.
	* grub-core/term/serial.c (grub_serial_term_output): Likewise.
	* grub-core/term/spkmodem.c (grub_spkmodem_term_output): Likewise.
	* grub-core/term/uboot/console.c (uboot_console_term_output):
	* Likewise.
2013-10-22 16:42:20 -02:00
Vladimir 'phcoder' Serbinenko
28153eb87a * grub-core/net/arp.c: Remove variable length arrays.
* grub-core/net/bootp.c: Likewise.
	* grub-core/net/dns.c: Likewise.
	* grub-core/net/icmp6.c: Likewise.
	* grub-core/net/net.c: Likewise.
2013-10-20 17:40:21 +02:00
Vladimir 'phcoder' Serbinenko
70671037c8 Split emunet into platform-dependent and GRUB-binding parts. Keep
platform-dependent part in kernel for easy access to OS functions.
2013-10-15 11:55:20 +02:00
Vladimir 'phcoder' Serbinenko
aabe433afe * grub-core/net/drivers/emu/emunet.c: Move to ..
* grub-core/osdep/linux/emunet.c: ..here.
2013-10-08 18:42:46 +02:00
Vladimir 'phcoder' Serbinenko
54ea2f4401 * grub-core/disk/ahci.c: Add needed explicit cast.
* grub-core/lib/backtrace.c: Likewise.
	* grub-core/net/ip.c: Likewise.
	* grub-core/net/tcp.c: Likewise.
	* grub-core/net/udp.c: Likewise.
2013-08-21 21:02:14 +02:00
Avik Sil
369508b3cb * grub-core/net/tftp.c: Send tftp ack packet before closing the socket. 2013-08-14 20:32:42 -03:00
Avik Sil
412ce9165c * grub-core/net/drivers/ieee1275/ofnet.c: Get proper mac address when using qemu. 2013-08-14 18:03:01 -03:00
Vladimir 'phcoder' Serbinenko
ae27e4d323 Merge mainline into arm 2013-07-16 18:43:43 +02:00
Andrey Borzenkov
7a87d69fcf * grub-core/net/bootp.c: Export net_* variables.
* grub-core/net/net.c: Likewise.
2013-07-14 22:59:00 +04:00
Paulo Flabiano Smorigo
a9c0b699c0 * grub-core/net/bootp.c (grub_cmd_bootp): Check if there is any card
present.
	* include/grub/err.h (grub_err_t): New enum value GRUB_ERR_NET_NO_CARD.
2013-05-11 11:25:29 +02:00
Vladimir 'phcoder' Serbinenko
8e71d87482 merge mainline into arm 2013-05-11 10:24:24 +02:00
Vladimir 'phcoder' Serbinenko
0ef7478b5b * grub-core/net/net.c (grub_net_open_real): Autoload network modules. 2013-05-10 14:17:10 +02:00
Vladimir 'phcoder' Serbinenko
2aa072d76a New variables 'net_default_*' to determine MAC/IP of default interface. 2013-05-07 12:05:36 +02:00
Leif Lindholm
b385e0723b Leif's API fixes 2013-05-03 15:07:39 +02:00
Vladimir 'phcoder' Serbinenko
fe22b071dc Fix memory leaks in ofnet.
Reported by: Francesco Lavra.
2013-04-13 20:12:11 +02:00
Vladimir 'phcoder' Serbinenko
fa8058da9e Fix few memory leaks. Reported by Francesco Lavra 2013-04-13 20:07:37 +02:00
Vladimir 'phcoder' Serbinenko
92c8f58d97 * grub-core/net/http.c: Fix bad free. 2013-04-12 20:17:53 +02:00