Gleb Smirnoff 458f475df8 unix/dgram: smart socket buffers for one-to-many sockets ... A one-to-many unix/dgram socket is a socket that has been bound with bind(2) and can get multiple connections. A typical example is /var/run/log bound by syslogd(8) and receiving multiple connections from libc syslog(3) API. Until now all of these connections shared the same receive socket buffer of the bound socket. This made the socket vulnerable to overflow attack. See 240d5a9b1c for a historical attempt to workaround the problem. This commit creates a per-connection socket buffer for every single connected socket and eliminates the problem. The new behavior will optimize seldom writers over frequent writers. See added test case scenarios and code comments for more detailed description of the new behavior. Reviewed by: markj Differential revision: https://reviews.freebsd.org/D35303		2022-06-24 09:09:11 -07:00
..
acct
execve	tests: add a basic test for argc == 0	2022-01-26 13:40:27 -06:00
pipe	Do a sweep and remove most WARNS=6 settings	2020-10-01 01:10:51 +00:00
basic_signal.c	Stop single stepping in signal handers on arm64	2022-02-07 15:03:23 +00:00
coredump_phnum_helper.c	Have the coredump_phnum test ask for the page size	2022-04-07 15:59:32 +01:00
coredump_phnum_test.sh
fdgrowtable_test.c	fdgrowtable_test.c: appease gcc	2020-12-11 22:52:16 +00:00
kcov.c	Remove PAGE_SIZE from the kcov tests	2022-06-17 10:43:30 +01:00
kern_copyin.c	copyin tests: Use the KERN_PROC_VM_LAYOUT sysctl to fetch layout info	2022-01-17 16:12:43 -05:00
kern_descrip_test.c
kill_zombie.c
ktls_test.c	ktls_test: Permit an option to skip tests not using ifnet TLS.	2022-06-14 10:35:01 -07:00
libkern_crc32.c	tests/sys/kern/crc32: Check for SSE4.2 before using it	2021-02-02 09:53:39 +00:00
Makefile	tests/unix_passfd: Prevent running them in parallel	2022-05-23 15:44:10 +02:00
Makefile.depend
Makefile.inc
module_test.c	module_test: Fix some assignments to errno intended to be tests.	2022-03-14 14:05:05 -07:00
pdeathsig.c
pdeathsig_helper.c
ptrace_test.c	Add NT_ARM_ADDR_MASK	2022-02-22 17:10:35 +00:00
reaper.c
sched_affinity.c	tests: Get rid of invalid since 3e11d3f6 testcase	2022-05-12 22:14:41 +03:00
sendfile_helper.c	add a few tests for sendfile.	2020-07-20 20:36:32 +00:00
sendfile_test.sh	kyua/qemu: When running in qemu, don't teset sendfile	2022-02-02 14:27:51 -07:00
sigaltstack.c
sigwait.c	Fix build after 128b9bf9	2022-04-25 14:45:05 +03:00
sonewconn_overflow.py	Clear the dmesg buffer to prevent rotating causes issues	2020-10-06 04:18:42 +00:00
sonewconn_overflow.sh	Add a regression test for the changes in r359922 and r359923.	2020-04-16 20:07:34 +00:00
subr_physmem_test.c	Handle non-page aligned/sized memory in physmem	2022-04-06 14:13:29 +01:00
sys_getrandom.c
sysctl_kern_proc.c	tests: Add some regression tests for a couple of KERN_PROC_* sysctls	2021-12-17 13:10:52 -05:00
unix_dgram.c	unix/dgram: smart socket buffers for one-to-many sockets	2022-06-24 09:09:11 -07:00
unix_passfd_test.c	unix/*: rewrite unp_internalize() cmsg parsing cycle	2022-06-06 10:05:28 -07:00
unix_seqpacket_test.c
unix_socketpair_test.c
waitpid_nohang.c