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* [retry] Rewrite unrelicensable portions of retry.cMichael Brown2015-03-051-2/+3
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-023-3/+15
| | | | | | | | | | These files cannot be automatically relicensed by util/relicense.pl since they either contain unusual but trivial contributions (such as the addition of __nonnull function attributes), or contain lines dating back to the initial git revision (and so require manual knowledge of the code's origin). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Relicense files under GPL2_OR_LATER_OR_UBDLMichael Brown2015-03-023-3/+15
| | | | | | | Relicense files for which I am the sole author (as identified by util/relicense.pl). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Extract timing parameters out to config/dhcp.hAlex Williamson2015-02-251-13/+19
| | | | | | | | | | | | | | iPXE uses DHCP timeouts loosely based on values recommended by the specification, but often abbreviated to reduce timeouts for reliable and/or simple network topologies. Extract the DHCP timing parameters to config/dhcp.h and document them. The resulting default iPXE behavior is exactly the same, but downstreams are now afforded the opportunity to implement spec-compliant behavior via config file overrides. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [tftp] Explicitly abort connection whenever parent interface is closedMichael Brown2015-02-061-38/+16Star
| | | | | | | | | Fetching the TFTP file size is currently implemented via a custom "tftpsize://" protocol hack. Generalise this approach to instead close the TFTP connection whenever the parent data-transfer interface is closed. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Remove obsolete dhcp_chaddr() functionMichael Brown2014-09-221-75/+5Star
| | | | | | | | | | | | | | | As of commit 03f0c23 ("[ipoib] Expose Ethernet-compatible eIPoIB link-layer addresses and headers"), all link layers have used addresses which fit within the DHCP chaddr field. The dhcp_chaddr() function was therefore made obsolete by this commit, but was accidentally left present (though unused) in the source code. Remove the dhcp_chaddr() function and the only remaining use of it, unnecessarily introduced in commit 08bcc0f ("[dhcp] Check for matching chaddr in received DHCP packets"). Reported-by: Wissam Shoukair <wissams@mellanox.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Check for matching chaddr in received DHCP packetsMichael Brown2014-09-221-0/+37
| | | | | | | | On large networks a DHCP XID collision is possible. Fix by explicitly checking the chaddr in received DHCP packets. Originally-fixed-by: Wissam Shoukair <wissams@mellanox.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcpv6] Do not set sin6_scope_id on the unspecified client socket addressMichael Brown2014-05-231-1/+0Star
| | | | | | | | | | | | | | | Setting sin6_scope_id to a non-zero value will cause the check against the "empty socket address" in udp_demux() to fail, and incoming DHCPv6 responses on interfaces other than net0 will be rejected with a spurious "No UDP connection listening on port 546" error. The transmitting network device is specified via the destination address, not the source address. Fix by simply not setting sin6_scope_id on the client socket address. Reported-by: Anton D. Kachalov <mouse@yandex-team.ru> Tested-by: Anton D. Kachalov <mouse@yandex-team.ru> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Strip invalid characters from hostnameMichael Brown2014-05-161-6/+31
| | | | | | | | | | Avoid generating syntactically invalid log messages by ensuring that invalid characters are not present in the hostname. In particular, ensure that any whitespace is stripped, since whitespace functions as a field separator for syslog messages. Reported-by: Alex Davies <adavies@jumptrading.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [uri] Refactor URI parsing and formattingMichael Brown2014-02-272-14/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | Add support for parsing of URIs containing literal IPv6 addresses (e.g. "http://[fe80::69ff:fe50:5845%25net0]/boot.ipxe"). Duplicate URIs by directly copying the relevant fields, rather than by formatting and reparsing a URI string. This relaxes the requirements on the URI formatting code and allows it to focus on generating human-readable URIs (e.g. by not escaping ':' characters within literal IPv6 addresses). As a side-effect, this allows relative URIs containing parameter lists (e.g. "../boot.php##params") to function as expected. Add validity check for FTP paths to ensure that only printable characters are accepted (since FTP is a human-readable line-based protocol with no support for character escaping). Construct TFTP next-server+filename URIs directly, rather than parsing a constructed "tftp://..." string, Add self-tests for URI functions. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Update end-of-name pointer after processing CNAME recordMichael Brown2014-02-261-2/+12
| | | | | | | | | | | | | | | | | | | | | Commit d4c0226 ("[dns] Support DNS search lists") introduced a regression when handling CNAME records resolving to names longer than the original name. The "end of name" offset stored in dns->offset was not updated to reflect the length of the new name, causing dns_question() to append the (empty) search suffix at an incorrect offset within the name buffer, resulting in a mangled DNS name. In the case of a CNAME record resolving to a name shorter than or equal in length to the original name, then the mangling would occur in an unused portion of the name buffer. In the common case of a name server returning the A (or AAAA) record along with the CNAME record, this would cause name resolution to succeed despite the mangling. (If the name server did not return the A or AAAA record along with the CNAME record, then the mangling would be revealed by the subsequent invalid query packet.) Reported-by: Nicolas Sylvain <nsylvain@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Support DNS search listsMichael Brown2014-02-053-265/+713
| | | | | | | | | | | 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>
* [dhcpv6] Add DHCPv6 "filename" settingMichael Brown2013-12-051-0/+10
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Merge SETTING_IPv4 and SETTING_IPv6Michael Brown2013-12-051-2/+2
| | | | | | | Allow for equivalent IPv4 and IPv6 settings (which requires equivalent settings to be adjacent within the settings list). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Force settings into alphabetical order within sectionsMichael Brown2013-12-053-5/+6
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcpv6] Use DUID-UUID form of client DUIDMichael Brown2013-12-051-20/+21
| | | | | | Use the system UUID to generate the client DUID-UUID as per RFC 6355. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Add support for IPv6 syslog serverMichael Brown2013-12-051-16/+35
| | | | | | | | | | | Note that IANA has not yet assigned a DHCPv6 option code for the syslog server. When a code is assigned, the definition of DHCPV6_LOG_SERVERS should be updated. Until then, an IPv6 address of a syslog server can be configured manually using e.g. set syslog6 3ffe:302:11:2::8309 Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Add support for resolving IPv6 addresses via AAAA recordsMichael Brown2013-12-052-34/+103
| | | | | | | | Our policy is to prefer IPv6 addreses to IPv4 addresses, but to request IPv6 addresses only if we have an IPv6 address for the name server itself. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Allow for IPv6 setting types in non-IPv6 buildsMichael Brown2013-12-051-5/+2Star
| | | | | | | | | Allow for the existence of references to IPv6 setting types without dragging in the whole IPv6 stack, by placing the definition of setting_type_ipv6 in core/settings.c and providing weak stub methods for parse_ipv6_setting() and format_ipv6_setting(). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Explicitly separate the concept of a completed fetched settingMichael Brown2013-12-054-39/+33Star
| | | | | | | | | | The fetch_setting() family of functions may currently modify the definition of the specified setting (e.g. to add missing type information). Clean up this interface by requiring callers to provide an explicit buffer to contain the completed definition of the fetched setting, if required. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Allow console input and output to be disabled independentlyMichael Brown2013-11-281-2/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Pass escape sequence context to ANSI escape sequence handlersMichael Brown2013-11-271-1/+3
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcpv6] Allow stateful DHCPv6 to apply obtained IPv6 addressesMichael Brown2013-11-151-6/+24
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcpv6] Add basic support for stateful and stateless DHCPv6Michael Brown2013-11-141-0/+955
| | | | | | | | | | | | 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>
* [settings] Move user-class setting from dhcp.c to settings.cMichael Brown2013-11-141-8/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Add DHCP network device configuratorMichael Brown2013-11-051-0/+6
| | | | | | | Provide an interface to DHCP via the generic network device configurator mechanism. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pxe] Always retrieve cached DHCPACK and apply to relevant network deviceMichael Brown2013-10-251-26/+1Star
| | | | | | | | | | | | When chainloading, always retrieve the cached DHCPACK packet from the underlying PXE stack, and apply it as the original contents of the "net<X>.dhcp" settings block. This allows cached DHCP settings to be used for any chainloaded iPXE binary (not just undionly.kkpxe). This change eliminates the undocumented "use-cached" setting. Issuing the "dhcp" command will now always result in a fresh DHCP request. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Fix uses of literal 0 as a NULL pointerMichael Brown2013-04-281-1/+1
| | | | | | Detected using sparse. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [uuid] Abstract UUID mangling code out to a separate uuid_mangle() functionMichael Brown2013-03-201-3/+1Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Use PXE byte ordering for UUID in DHCP option 97Michael Brown2013-03-201-1/+8
| | | | | | | | The PXE spec does not specify a byte ordering for UUIDs, but RFC4578 suggests that it follows the EFI spec, in which the first three fields are little-endian. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [tftp] Allow TFTP block size to be controlled via the PXE TFTP APIMichael Brown2013-03-061-20/+8Star
| | | | | | | | | | | | | | The PXE TFTP API allows the caller to request a particular TFTP block size. Since mid-2008, iPXE has appended a "?blksize=xxx" parameter to the TFTP URI constructed internally; nothing has ever parsed this parameter. Nobody seems to have cared that this parameter has been ignored for almost five years. Fix by using xfer_window(), which provides a fairly natural way to convey the block size information from the PXE TFTP API to the TFTP protocol layer. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [src] Fix spelling in comments, debug messages and local variable namesStefan Weil2013-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes in comments and debug messages: existance -> existence unecessary -> unnecessary occured -> occurred decriptor -> descriptor neccessary -> necessary addres, adress -> address initilize -> initialize sucessfully -> successfully paramter -> parameter acess -> access upto -> up to likelyhood ->likelihood thru -> through substracting -> subtracting lenght -> length isnt -> isn't interupt -> interrupt publically -> publicly (this one was not wrong, but unusual) recieve -> receive accessable -> accessible seperately -> separately pacet -> packet controled -> controlled dectect -> detect indicies -> indices extremly -> extremely boundry -> boundary usefull -> useful unuseable -> unusable auxilliary -> auxiliary embeded -> embedded enviroment -> environment sturcture -> structure complier -> compiler constructes -> constructs supress -> suppress intruduced -> introduced compatability -> compatibility verfication -> verification ths -> the reponse -> response Fixes in local variable names: retreive -> retrieve Most of these fixes were made using codespell. Signed-off-by: Stefan Weil <sw@weilnetz.de> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Include version number within only a single object fileMichael Brown2012-11-021-3/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ipoib] Expose Ethernet-compatible eIPoIB link-layer addresses and headersMichael Brown2012-08-311-2/+10
| | | | | | | | | | | | | Almost all clients of the raw-packet interfaces (UNDI and SNP) can handle only Ethernet link layers. Expose an Ethernet-compatible link layer to local clients, while remaining compatible with IPoIB on the wire. This requires manipulation of ARP (but not DHCP) packets within the IPoIB driver. This is ugly, but it's the only viable way to allow IPoIB devices to be driven via the raw-packet interfaces. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [legal] Update FSF mailing address in GPL licence textsMichael Brown2012-07-205-5/+10
| | | | | Suggested-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Include hostname within syslog messages where possibleMichael Brown2012-06-201-4/+52
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Move "domain" setting from dns.c to settings.cMichael Brown2012-06-201-8/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Request broadcast responses when we already have an IPv4 addressMichael Brown2012-06-201-0/+7
| | | | | | | | | | | | | | | | | FCoE requires the use of multiple local unicast link-layer addresses. To avoid the complexity of managing multiple addresses, iPXE operates in promiscuous mode. As a consequence, any unicast packets with non-matching IPv4 addresses are rejected at the IPv4 layer (rather than at the link layer). This can cause problems when issuing a second DHCP request: if the address chosen by the DHCP server does not match the existing address, then the DHCP response will itself be rejected. Fix by requesting a broadcast response from the DHCP server if the network interface already has any IPv4 addresses. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [tftp] Allow builds without TFTP supportMichael Brown2012-04-171-8/+0Star
| | | | | | | Allow TFTP to be configured out by moving the next-server setting definition (which is used by autoboot.c) from tftp.c to settings.c. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Pass internal syslog() priority through to syslog consoleMichael Brown2012-03-261-2/+21
| | | | | | | Use a private ANSI escape sequence to convey the priority of an internal syslog() message through to the syslog server. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Do not share ANSI escape context between lineconsole usersMichael Brown2012-03-261-0/+8
| | | | | | | | An ANSI escape sequence context cannot be shared between multiple users. Make the ANSI escape sequence context part of the line console definition and provide individual contexts for each user. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Exclude text-based UI output from logfile-based consolesMichael Brown2012-03-261-1/+1
| | | | | | | | The output from text-based user interfaces such as the "config" command is not generally meaningful for logfile-based consoles such as syslog and vmconsole. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [console] Allow usage to be defined independently for each consoleMichael Brown2012-03-261-0/+8
| | | | | | | | | | | | | | | | | | | | | Add the concept of a "console usage", such as "standard output" or "debug messages". Allow usages to be associated with each console independently. For example, to send debugging output via the serial port, while preventing it from appearing on the local console: #define CONSOLE_SERIAL CONSOLE_USAGE_ALL #define CONSOLE_PCBIOS ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_DEBUG ) If no usages are explicitly specified, then a default set of usages will be applied. For example: #define CONSOLE_SERIAL will have the same affect as #define CONSOLE_SERIAL CONSOLE_USAGE_ALL Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Separate out generic line-based console functionalityMichael Brown2012-02-291-36/+8Star
| | | | | | | Abstract out the generic line-handling portions of the syslog putchar() routine, to allow use by other console types. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [syslog] Disable console when no syslog server is definedMichael Brown2012-02-291-7/+5Star
| | | | | | | | Explicitly disable the syslog console when no syslog server is defined, rather than (ab)using the socket family address as an equivalent console-enabled flag. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Allow trailing dots in DNS namesMichael Brown2012-01-111-9/+15
| | | | | Reported-by: Christian Hesse <list@eworm.de> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Add PXE-mandated DHCP options [128,135] to parameter request listMichael Brown2011-12-061-0/+1
| | | | | | | | The PXE specification requires us to request DHCP options 128 to 135 inclusive, although these have no defined purpose. Suggested-by: Ralf Buettner <rab@bootix.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Use a random DHCP transaction identifier (xid)Michael Brown2011-09-191-23/+24
| | | | | | | | | iPXE currently uses the last four bytes of the MAC address as the DHCP transaction identifier. Reduce the probability of collisions by generating a random transaction identifier. Originally-implemented-by: Amos Kong <akong@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [tftp] Avoid setting current working URI to "tftp://0.0.0.0/"Michael Brown2011-03-311-5/+9
| | | | | | | Set the current working URI to NULL rather than to "tftp://0.0.0.0/". Reported-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [settings] Match terminology in online documentationMichael Brown2011-03-232-4/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
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