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43 commits

Author SHA1 Message Date
XANTRONIX Development
905d5b117c Better handle read()s of multiple frames from TNC 
Implement better handling of situations when read() captures multiple
TNC frames; ensure each frame is handled in src/server.c, function
handle_iface(), to ensure packets aren't ignored before the next
select() call
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
ebbfb50b1c Use KISS framing for raw sockets 
Use KISS framing for raw sockets to avoid multiple write() calls from
being buffered, which caused read() on the other end of a file
descriptor to read more than frame at once
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
bdb73c8805 Making significant headway towards a working server 2024-03-01 00:20:46 -05:00
XANTRONIX Development
b5ed9e9b61 Fix patty_kiss_tnc_recv() reads less than bufsz 
Fix issues with patty_kiss_tnc_recv() when read() calls return less than
the allocated buffer size
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
307a668d6d That hurt 2024-03-01 00:20:46 -05:00
XANTRONIX Development
d266058ad4 Fix patty_kiss_tnc_recv() issues 
Fix patty_kiss_tnc_recv() issues with small buffers (~330 bytes) by
more properly detecting EOF being the condition at which the current
decoder offset in the buffer is equal to the last buffer read size; the
offset can never be the number of bytes read, and the initial read
length is -1, so early EOF conditions are avoided
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
2e0adee54e Remove _unix suffix from patty_kiss_tnc_fd_unix() 2024-03-01 00:20:46 -05:00
XANTRONIX Development
750ab452d2 Refactor patty_kiss_tnc_recv() 
Refactor patty_kiss_tnc_recv() to always read a fixed number of bytes
into a circular buffer

Other changes:

    * Avoid needing memmove() per packet processed

    * Allow processing packets larger than the internal read buffer
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
66e5de9d6c Make patty_kiss_tnc_open() use default buffer size 
Make patty_kiss_tnc_open() use default buffer size

Other changes:

    * Make src/decode.c no longer require a filename to use as a TNC
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
d44889121e Do not decode KISS frames into internal buffer 
Changes:

    * Modify patty_kiss_tnc_recv() to accept a pointer to a read buffer,
      and a maximum length argument, to receive one packet

    * Modify src/decode.c to use the new patty_kiss_tnc_recv() calling
      form
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
e74941f714 Fix patty_kiss_tnc_send() 
Fix patty_kiss_tnc_send() to ensure frames survive unmodified through
round trips of patty_kiss_tnc_send() and patty_kiss_tnc_recv() calls
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
54a521e8a8 Use only one write(2) call per frame start 
Use only one write(2) call per frame start in src/kiss.c
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
d7ab08338c Implement patty_kiss_tnc_open_fd() 
Implement patty_kiss_tnc_open_fd() to create a TNC object for an
existing Unix file descriptor
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
ede262397b Refactor patty_kiss_tnc_recv() 
Refactor patty_kiss_tnc_recv() to be much more compact and correct;
ensure the KISS command byte is absolutely required, and that
consecutive frame end markers are handled without error
 2024-03-01 00:20:46 -05:00
XANTRONIX Development
663965db71 Getting there 2024-03-01 00:20:46 -05:00
XANTRONIX Development
9217b0366f Sprucing things up a bit 2024-03-01 00:20:46 -05:00
XANTRONIX Development
f1e7fc356f Use enum kiss_flags type, not int 2024-03-01 00:20:46 -05:00
XANTRONIX Development
df23b0b8e3 Remove irrelevant comment 2024-03-01 00:20:46 -05:00
XANTRONIX Development
de0c0ef844 Use uint8_t instead of unsigned char in src/kiss.c 2024-03-01 00:20:46 -05:00
XANTRONIX Development
b44a6789a8 Keep escape sequences as static variables 2024-03-01 00:20:46 -05:00
XANTRONIX Development
1666666e9d This is all very necessary if I am to wrest tight control over frame decoding into my own hands 2024-03-01 00:20:46 -05:00
XANTRONIX Development
63f031b461 It occurs to me I'll need patty_kiss_tnc_decode() to be exported 2024-03-01 00:20:46 -05:00
XANTRONIX Development
2c0974658a I'm running out of shitty commit messages 2024-03-01 00:20:46 -05:00
XANTRONIX Development
ff76e77336 Stub out patty_ax25_next_event() 2024-03-01 00:20:46 -05:00
XANTRONIX Development
86b099bd58 Hmm! Getting somewhere maybe 2015-07-20 23:21:45 -05:00
XANTRONIX Development
22874e6e06 Since we broke off, I'm using lipstick again 2015-07-17 00:45:14 +00:00
XANTRONIX Development
775c2c5283 s/errors/dropped/g 2015-07-15 21:59:56 -05:00
XANTRONIX Development
9af63066b6 Go to hell and back to get valid frames off the wire, and keep track of error counts 2015-07-15 21:59:08 -05:00
XANTRONIX Development
6a427c4097 Make tnc_buffer() only return bytes actually read 2015-07-15 21:45:46 -05:00
XANTRONIX Development
e7b1c2cf54 Riveting commentary 2015-07-15 21:19:34 -05:00
XANTRONIX Development
1cccfca835 KEEN REFACTORING YES VERY MUCH THANK YOU MA'AM 2015-07-15 21:16:39 -05:00
XANTRONIX Development
fde6e56d50 Separate buffering method <3 2015-07-15 20:32:24 -05:00
XANTRONIX Development
250d19c599 Eh, alignment 2015-07-15 20:29:50 -05:00
XANTRONIX Development
4c27c45615 Yes, really 2015-07-16 00:31:40 +00:00
XANTRONIX Development
9278eca7c3 IT'S ALIVE\! 2015-07-16 00:31:27 +00:00
XANTRONIX Development
1ef84ca2b4 Hi, yes, I'm aware none of this compiles nor makes sense at this time 2015-07-14 22:27:42 -05:00
XANTRONIX Development
7709abbc1c Damn Xan, you code like a BEAST O:) 2015-07-14 16:45:03 +00:00
XANTRONIX Development
4f4a898819 This SEEMS valid, but we'll compile later 2015-07-12 23:48:12 -05:00
XANTRONIX Development
facedcebb6 I think I just implemented patty_kiss_write(); tons o' system calls, but fuggit man! 2015-07-12 15:34:40 -05:00
XANTRONIX Development
b5ef56c4a0 That'll work, I suppose 2015-07-12 12:00:35 -05:00
XANTRONIX Development
17dd963f97 Man, this stuff is kinda hard when the standards are ill-specified 2015-07-12 02:28:31 -05:00
XANTRONIX Development
fac432cdb4 At least detect unexpected escape transposition characters 2015-07-12 02:18:08 -05:00
XANTRONIX Development
45df26382f Well, it's not exactly safe, but I bet it'll do for now 2015-07-12 02:16:26 -05:00