Michael Brown [Sat, 29 Apr 2006 17:17:43 +0000 (17:17 +0000)]
Change semantics of network API so that packet-absorbing calls *always*
take ownership of the packet, rather than doing so only if they return
success. This breaks semantic compatibility with Linux's
hard_start_xmit() method, but means that we don't have to worry so much
about error cases.
Split mechanism of processing received packets (net_rx_process()) out
from policy (net_step()), preparatory to putting net_step() in a separate
object.
Michael Brown [Tue, 25 Apr 2006 10:41:49 +0000 (10:41 +0000)]
Removed incorrect comment; malloc() is inefficient only when the
alignment and size are both powers of two, and there's no way to
specify an alignment through the malloc() interface anyway.
Michael Brown [Mon, 24 Apr 2006 18:29:47 +0000 (18:29 +0000)]
(librm_base-1b) is already an offset; no need to apply OFFSET().
Doing so, in fact, seems to expose an assembler bug; (a-b-0) is
apparently not the same as (a-b). Go figure.
Michael Brown [Mon, 24 Apr 2006 15:42:49 +0000 (15:42 +0000)]
Header rearrangement.
I want to get to the point where any header in include/ reflects a
standard user-level header (e.g. a POSIX header), while everything that's
specific to gPXE lives in include/gpxe/. Headers that reflect a Linux
header (e.g. if_ether.h) should also be in include/gpxe/, with the same
name as the Linux header and, preferably, the same names used for the
definitions.
Michael Brown [Mon, 24 Apr 2006 15:38:53 +0000 (15:38 +0000)]
Network API now allows for multiple network devices (although the
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
Michael Brown [Mon, 24 Apr 2006 15:33:06 +0000 (15:33 +0000)]
Network API now allows for multiple network devices (although the
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
Michael Brown [Wed, 19 Apr 2006 11:32:24 +0000 (11:32 +0000)]
Remove the concept of the media-independent link-layer header and replace
it with metadata in the pkb structure. This is required since UNDI will
want to be able to parse the link-layer header without destroying it.
Michael Brown [Wed, 19 Apr 2006 01:52:41 +0000 (01:52 +0000)]
Moved if_ether.h and if_arp.h to include/gpxe, for consistency with Linux
kernel.
Removed obsolete struct arprequest from if_arp.h and put it in nic.c so
that nic.c will still compile. ARP will very shortly be handled by
net/arp.c instead.
Michael Brown [Fri, 24 Mar 2006 16:43:12 +0000 (16:43 +0000)]
Put in a substitute pcap_inject() function, since earlier versions of
libpcap are lacking the function. For now, we always use the
substitute version, since there's no easy way to determine whether or
not we need it.
Michael Brown [Thu, 23 Mar 2006 21:34:25 +0000 (21:34 +0000)]
Added prototype for inet_ntoa, even though we don't have the function
yet, in order to allow prototester.c to compile. It might be worth
changing all the uses of "%@" in printf to use "%s" and inet_ntoa
instead, in order to improve the portability of our code.
Michael Brown [Thu, 23 Mar 2006 21:06:36 +0000 (21:06 +0000)]
Add include/gpxe as a directory to scan.
Exclude proto/uip, since uip.c and uip_arp.c both have global variables
called "c", which screws up doxygen's auto-generation of links to file
documentation when it encounters a file name such as "hello.c".
Michael Brown [Wed, 22 Mar 2006 02:23:20 +0000 (02:23 +0000)]
Skeleton version: contains device driver (connecting to network via
hijack daemon) and a functional but very ugly and very primitive
wrapper around uIP.
This passes proof-of-concept testing; it successfully initiates a TCP
connection and responds to pings.