Joshua Oreman b1ba80f8fb [dhcp] Add generic facility for using cached network settings ...

When a DHCP session is started (using autoboot or a command-line `dhcp
net0'), check whether the new setting use-cached (DHCP option 175.178)
is TRUE; if so, skip DHCP and rely on currently registered
settings. This lets one combine a static IP with autoboot.

Before checking the use-cached setting, call a weak
get_cached_dhcpack() hook that can be implemented by particular builds
of gPXE supporting some fashion of retrieving a cached DHCPACK packet.
If one is available, it is registered as an options source, and then
either that packet's option 175.178 or the user's prior manual
use-cached setting can allow skipping duplicate DHCP.

Using cached packets is not the default because DHCP servers are often
configured to give gPXE different options than they give a vendor PXE
client; in order to break the infinite loop of PXE chaining, one would
need to load a gPXE with an embedded image that does something more
than autoboot.

Signed-off-by: Marty Connor <mdc@etherboot.org>

2010-01-20 17:15:51 -05:00

..

efi

[legal] Add a selection of FILE_LICENCE declarations

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acpi.h

[legal] Add a selection of FILE_LICENCE declarations

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aes.h

[crypto] Add AES key-wrap mode (RFC 3394)

2010-01-05 09:06:15 -05:00

ansiesc.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

aoe.h

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api.h

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2009-05-18 08:33:25 +01:00

arc4.h

[cipher] Add the ARC4 stream cipher

2010-01-05 09:00:20 -05:00

arp.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

asn1.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ata.h

[ata] Make ATA command issuing partially asynchronous

2009-07-17 23:01:20 +01:00

base64.h

[legal] Add a selection of FILE_LICENCE declarations

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bitbash.h

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bitmap.h

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bitops.h

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blockdev.h

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cbc.h

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chap.h

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command.h

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cpio.h

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2009-05-18 08:33:25 +01:00

crc32.h

[digest] Add generic CRC32 function

2010-01-05 08:54:28 -05:00

crypto.h

[crypto] Add a placeholder for a proper random number generator

2010-01-05 09:07:33 -05:00

device.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

dhcp.h

[dhcp] Add generic facility for using cached network settings

2010-01-20 17:15:51 -05:00

dhcpopts.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

dhcppkt.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

dns.h

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2009-05-18 08:33:25 +01:00

downloader.h

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2009-05-18 08:33:25 +01:00

eapol.h

[eapol] Add basic support for 802.1X EAP over LANs

2010-01-05 09:18:12 -05:00

editbox.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

editstring.h

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eisa.h

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elf.h

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2009-05-18 08:33:25 +01:00

errfile.h

[skge] Add driver for skge NICs

2010-01-14 12:05:35 -05:00

errortab.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ethernet.h

[netdevice] Add the concept of an "Ethernet-compatible" MAC address

2009-10-23 22:14:05 +01:00

fakedhcp.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

features.h

[infiniband] Add support for SRP over Infiniband

2009-08-10 22:27:33 +01:00

filter.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ftp.h

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2009-05-18 08:33:25 +01:00

gdbserial.h

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gdbstub.h

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gdbudp.h

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hidemem.h

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hmac.h

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http.h

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2009-05-18 08:33:25 +01:00

i2c.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ib_cm.h

[infiniband] Handle duplicate Communication Management REPs

2009-08-09 01:31:07 +01:00

ib_cmrc.h

[infiniband] Add a "communication-managed reliable connection" protocol

2009-08-10 22:23:28 +01:00

ib_mad.h

[infiniband] Disambiguate CM connection rejection reasons

2009-08-10 22:31:55 +01:00

ib_mcast.h

[infiniband] Update all other MAD users to use a management interface

2009-08-08 23:56:28 +01:00

ib_mi.h

[infiniband] Add the concept of a management interface

2009-08-08 23:51:27 +01:00

ib_packet.h

[infiniband] Update subnet management agent to use a management interface

2009-08-08 23:55:29 +01:00

ib_pathrec.h

[infiniband] Update all other MAD users to use a management interface

2009-08-08 23:56:28 +01:00

ib_sma.h

[infiniband] Update subnet management agent to use a management interface

2009-08-08 23:55:29 +01:00

ib_smc.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ib_srp.h

[infiniband] Add support for SRP over Infiniband

2009-08-10 22:27:33 +01:00

icmp6.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

icmp.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ieee80211.h

[802.11] Add core support for detecting and using encrypted networks

2010-01-05 09:08:37 -05:00

if_arp.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

if_ether.h

[eapol] Add basic support for 802.1X EAP over LANs

2010-01-05 09:18:12 -05:00

image.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

in.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

infiniband.h

[ipoib] Mask out non-QPN bits in the IPoIB destination MAC when sending

2009-11-16 22:15:29 +00:00

init.h

[legal] Add a selection of FILE_LICENCE declarations

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interface.h

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io.h

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iobuf.h

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ip6.h

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ip.h

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ipoib.h

[ipoib] Mask out non-QPN bits in the IPoIB destination MAC when sending

2009-11-16 22:15:29 +00:00

isa_ids.h

[legal] Add a selection of FILE_LICENCE declarations

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isa.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

isapnp.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

iscsi.h

[scsi] Generalise iscsi_parse_lun() to scsi_parse_lun()

2009-08-10 19:30:41 +01:00

job.h

[job] Add missing job_progress() interface method

2009-08-31 19:33:05 +01:00

keys.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

linebuf.h

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linux_compat.h

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list.h

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login_ui.h

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malloc.h

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mca.h

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md5.h

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memmap.h

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monojob.h

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nap.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ndp.h

Add per-file error identifiers

2007-07-24 17:11:31 +01:00

net80211.h

[802.11] Add core support for detecting and using encrypted networks

2010-01-05 09:08:37 -05:00

netdevice.h

[netdevice] Add the concept of an "Ethernet-compatible" MAC address

2009-10-23 22:14:05 +01:00

null_nap.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

nvo.h

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nvs.h

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open.h

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pci_ids.h

[myri10ge] Native driver for Myricom 10Gb Ethernet NICs

2010-01-14 10:32:40 -05:00

pci_io.h

[legal] Add a selection of FILE_LICENCE declarations

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pci.h

[pci] Add PCI_COMMAND_INTX_DISABLE

2010-01-14 10:23:12 -05:00

pcibackup.h

[pci] Add generic configuration space backup/restore facility

2009-10-14 02:06:23 +01:00

posix_io.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

process.h

[process] Make it safe to call process_add() multiple times

2009-08-10 19:27:24 +01:00

profile.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

ramdisk.h

[legal] Add a selection of FILE_LICENCE declarations

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rarp.h

[legal] Add a selection of FILE_LICENCE declarations

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rc80211.h

[802.11] Add support for 802.11 devices with software MAC layer

2009-08-01 19:00:32 +01:00

refcnt.h

[legal] Add a selection of FILE_LICENCE declarations

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resolv.h

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retry.h

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rotate.h

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rsa.h

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2009-05-18 08:33:25 +01:00

sanboot.h

[sanboot] Extend the "keep-san" option to non-iSCSI SAN protocols

2009-11-04 01:21:43 +00:00

scsi.h

[scsi] Make LUN a property of the SCSI backend only

2009-08-10 19:31:45 +01:00

sec80211.h

[802.11] Add core support for detecting and using encrypted networks

2010-01-05 09:08:37 -05:00

segment.h

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serial.h

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settings_ui.h

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settings.h

[settings] Add Bus ID setting

2009-12-14 17:54:53 +00:00

sha1.h

[digest] Add HMAC-SHA1 based pseudorandom function and PBKDF2

2010-01-05 09:01:34 -05:00

shell_banner.h

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shell.h

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smbios.h

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socket.h

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spi_bit.h

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spi.h

[spi] Add address-length autodetection to the SPI bit-bashing code

2009-05-28 19:32:03 +01:00

srp.h

[infiniband] Allow SRP reconnection attempts even after reporting failures

2009-08-10 22:30:56 +01:00

tables.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

tcp.h

[tcp] Improve robustness in the presence of duplicated received packets

2009-06-23 09:40:26 +01:00

tcpip.h

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2009-05-18 08:33:25 +01:00

tftp.h

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2009-05-18 08:33:25 +01:00

threewire.h

[nvs] Add init function for Atmel 93C66 EEPROM

2009-06-23 10:33:10 +01:00

timer.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

tls.h

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uaccess.h

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udp.h

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umalloc.h

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uri.h

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uuid.h

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virtio-pci.h

[virtio] Split virtio-net.c into several files.

2008-11-19 19:58:51 +00:00

virtio-ring.h

[virtio] Split virtio-net.c into several files.

2008-11-19 19:58:51 +00:00

vsprintf.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

wpa.h

[wpa] Add general support for WPA-protected 802.11 networks

2010-01-05 09:53:03 -05:00

x509.h

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18 08:33:25 +01:00

xfer.h

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