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* [ipv6] Rename ipv6_scope to ipv6_settings_scopeMichael Brown2016-07-211-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Create routing table based on IPv6 settingsMichael Brown2016-07-201-53/+2Star
| | | | | | | | | | | | | | | | | | | | | | Use the IPv6 settings to construct the routing table, in a matter analogous to the construction of the IPv4 routing table. This allows for manual assignment of IPv6 addresses via e.g. set net0/ip6 2001:ba8:0:1d4::6950:5845 set net0/len6 64 set net0/gateway6 fe80::226:bff:fedd:d3c0 The prefix length ("len6") may be omitted, in which case a default prefix length of 64 will be assumed. Multiple IPv6 addresses may be assigned manually by implicitly creating child settings blocks. For example: set net0/ip6 2001:ba8:0:1d4::6950:5845 set net0.ula/ip6 fda4:2496:e992::6950:5845 Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Match user expectations for IPv6 settings prioritiesMichael Brown2016-07-191-2/+17
| | | | | | | | | | | | | | A reasonable user expectation is that ${net0/ip6} should show the "highest-priority" of the IPv6 addresses, even when multiple IPv6 addresses are active. The expected order of priority is likely to be manually-assigned addresses first, then stateful DHCPv6 addresses, then SLAAC addresses, and lastly link-local addresses. Using ${priority} to enforce an ordering is undesirable since that would affect the priority assigned to each of the net<N> blocks as a whole, so use the sibling ordering capability instead. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Expose IPv6 settings acquired through NDPMichael Brown2016-07-191-5/+246
| | | | | | | | | Expose the IPv6 address (or prefix) as ${ip6}, the prefix length as ${len6}, and the router address as ${gateway6}. Originally-implemented-by: Hannes Reinecke <hare@suse.de> Originally-implemented-by: Marin Hannache <git@mareo.fr> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Allow settings to comprise arbitrary subsets of NDP optionsMichael Brown2016-07-191-35/+67
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Create space for IPv6 in settings display orderMichael Brown2016-07-151-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Perform SLAAC only during autoconfigurationMichael Brown2016-07-151-8/+14
| | | | | | | | | | | | | | | | | | We currently perform IPv6 stateless address autoconfiguration (SLAAC) in response to any router advertisement with the relevant flags set. This can result in the local IPv6 source address changing midway through a TCP connection, since our connections bind only to a local port number and do not store a local network address. In addition, this behaviour for SLAAC is inconsistent with that for DHCPv4 and stateful DHCPv6, both of which will be performed only as a result of an explicit autoconfiguration action (e.g. via the default autoboot sequence, or the "ifconf" command). Fix by ignoring router advertisements arriving outside the context of an ongoing autoconfiguration attempt. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Do not set sin6_scope_id on source addressMichael Brown2014-05-231-1/+0Star
| | | | | | | | The transmitting network device is specified via the destination address, not the source address. There is no reason to set sin6_scope_id on the source address. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Support DNS search listsMichael Brown2014-02-051-0/+10
| | | | | | | | | | | Update the DNS resolver to support DNS search lists (as provided by DHCP option 119, DHCPv6 option 24, or NDP option 31). Add validation code to ensure that parsing of DNS packets does not overrun the input, get stuck in infinite loops, or (worse) write beyond the end of allocated buffers. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Expose NDP-provided settings (including the DNS server)Michael Brown2013-12-051-9/+197
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Separate the concepts of prefix and address creationMichael Brown2013-11-151-34/+63
| | | | | | | | Allow for IPv6 routing table entries to be created for an on-link prefix where a local address has not yet been assigned to the network device. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcpv6] Add basic support for stateful and stateless DHCPv6Michael Brown2013-11-141-5/+36
| | | | | | | | | | | | Add support for the stateful and stateless variants of the DHCPv6 protocol. The resulting settings block is registered as "net<x>.dhcpv6", and DHCPv6 options can be obtained using e.g. "${net0.dhcpv6/23:ipv6}" to obtain the IPv6 DNS server address. IPv6 addresses obtained via stateful DHCPv6 are not yet applied to the network device. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Add IPv6 network device configuratorMichael Brown2013-11-071-26/+217
| | | | | | | | | | Include IPv6 within the generic network device configurator mechanism. The IPv6 configurator will send a router solicitation and wait for a router advertisement to be received. (As per RFC4861 section 6.3.7, we do this even if advertisements have been received prior to sending the router solicitation.) Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Add ndp_tx_router_solicitation() to send router solicitationsMichael Brown2013-10-251-33/+65
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Treat sin6_scope_id consistentlyMichael Brown2013-10-251-2/+2
| | | | | | | sin6_scope_id is never exposed outside of the local system, and so should be a native-endian quantity. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Support stateless address autoconfiguration (SLAAC)Michael Brown2013-10-231-52/+112
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Extract link layer addresses from router advertisementsMichael Brown2013-10-231-47/+144
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Fix uninitialised-variable warningMichael Brown2013-09-031-0/+3
| | | | | | Fix uninitialised-variable warning reported by gcc 4.5.2. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipv6] Replace IPv6 stackMichael Brown2013-09-031-129/+319
| | | | | | | | | | | | | | | | Replace the existing partially-implemented IPv6 stack with a fresh implementation. This implementation is not yet complete. The IPv6 transmit and receive datapaths are functional (including fragment reassembly and parsing of arbitrary extension headers). NDP neighbour solicitations and advertisements are supported. ICMPv6 echo is supported. At present, only link-local addresses may be used, and there is no way to specify an IPv6 address as part of a URI (either directly or via a DNS lookup). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Rename gPXE to iPXEMichael Brown2010-04-201-6/+6
| | | | | | | | | | | Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* Kill off some warnings-problematic debug statements in ndp.c; the codeMichael Brown2007-12-071-4/+2Star
| | | | is non-functional anyway.
* Various warnings fixups for OpenBSD with gcc-3.3.5.Michael Brown2007-12-071-3/+3
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* make add_ndp_entry staticHolger Lubitz2007-07-271-2/+3
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* pkbuff->iobuf changeoverMichael Brown2007-05-191-6/+6
| | | | | | | | Achieved via Perl using: perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \ -e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \ -e 's/pkb/iobuf/g; s/PKB/IOB/g;'
* We don't actually have a stdio.h header file. Our printf() functions areMichael Brown2006-09-271-1/+0Star
| | | | | | | | defined in vsprintf.h. (This may change, since vsprintf.h is a non-standard name, but for now it's the one to use.) There should be no need to include vsprintf.h just for DBG() statements, since include/compiler.h forces it in for a debug build anyway.
* added stdio.h to includes for DBG compilationMarty Connor2006-09-271-2/+3
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* IP6 supportNikhil Chandru Rao2006-08-191-0/+181
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