Vladimir Dubrovin
ae4011604f
Unix sockets: no addresses on streams, abstract names, tcppm port 0
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On Linux a proxy listening on a Unix socket relayed only the first
bytes of an answer: sockmap() read with recvfrom() into the client's
address, which for a Unix stream socket Linux fills with an empty
AF_UNIX one, and then sent with sendto() to that address, which a
connected Unix stream socket refuses. A TCP connection has no use for
addresses: sockmap() now sends and receives with NULL ones, and
connect-back sends its command with socksend() and reads the answer
with sockrecvfrom() without an address, which a NULL sin now allows.
An abstract socket name (-iunix:@NAME) was bound with the whole size of
struct sockaddr_un, padded with zeros, so a client naming it by its
bytes, as most do, reached another name. SASIZE() now gives an abstract
address its exact size; getsockname() calls that took SASIZE() of the
old contents as the buffer size take the buffer's size instead.
tcppm refused port 0 for a unix: target, though the manual gives
"tcppm 8080 unix:/var/run/app.sock 0" as the example: the port of a
Unix socket target is ignored, so 0 is allowed.
On a reload the new service bound the path anew and the old one,
closing after it, removed the file, the new service's by then, leaving
nothing to connect to. A service now notes the file it bound (device
and inode) and removes the path on closing only if it is still that
file.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-18 12:42:01 +03:00
Vladimir Dubrovin
3feb6df00d
Fix: invalid hostname ACL handling in UDPASSOC
2026-10-10 19:53:58 +03:00
Vladimir Dubrovin
be619898c6
Fix missing device binding for few cases
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(cherry picked from commit b4f5ffbf8c
2026-10-10 17:42:48 +03:00
Vladimir Dubrovin
13a57812e5
Fix: -Ne/-Ni, -4 / -6 handling for udp mapping in socks, mixed family support in udp
2026-08-12 16:25:12 +03:00
Vladimir Dubrovin
bebc3894e2
Support acls for UDP ASSOC, fix udppm via SOCKSv5
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2026-08-11 19:02:54 +03:00
Vladimir Dubrovin
69862b67cb
Check bandlims for UDP traffic
2026-06-02 14:23:52 +03:00
Vladimir Dubrovin
fd7b25bf06
Use non-blocking sockets for UDP
2026-06-02 13:43:56 +03:00
Vladimir Dubrovin
289d2f5211
Use C89 style declarations
2026-05-22 18:57:23 +03:00
Vladimir Dubrovin
05c4832c6c
Minor cleanups
2026-05-13 23:21:13 +03:00
Vladimir Dubrovin
aaa04116a8
Fix issues with -s
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2026-05-08 20:43:02 +03:00
Vladimir Dubrovin
b1d21cbdca
Copyright update
2026-05-08 18:07:08 +03:00
Vladimir Dubrovin
7a139e59a5
Use UDPMAP request address to limit client, not server
2026-05-07 16:07:59 +03:00
Vladimir Dubrovin
0e13f57139
Allocate udp buffer dynamically
2026-05-06 22:45:00 +03:00
Vladimir Dubrovin
830b2d39d1
Use standard malloc functions
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2026-05-04 18:50:02 +03:00
Vladimir Dubrovin
4068a6955f
Fix UDP parent for SOCKSv5
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2026-05-02 00:00:45 +03:00
Vladimir Dubrovin
acce67a512
Fix NULL address request for UDP ASSOC
2026-05-01 17:26:06 +03:00
Vladimir Dubrovin
314503d8df
SOCKSv5 parent udp support (initial, untested)
2026-05-01 15:13:53 +03:00
