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opnsense-src/sys/compat/linux
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Lexi Winter ca63710d36 linux: ignore setsockopt(IPV6_RECVERR) 
Under Linux, the socket options IP_RECVERR and IPV6_RECVERR are used to
receive socket errors via a dedicated 'error queue' which can be
retrieved via recvmsg().  FreeBSD does not support this functionality.

For IPv4, the sysctl compat.linux.ignore_ip_recverr can be set to 1 to
silently ignore attempts to set IP_RECVERR and return success to the
application, which is wrong, but is required for (among other things)
a functional DNS client in recent versions of glibc.

Add support for ignoring IPV6_RECVERR, controlled by the same sysctl.
This fixes DNS in Linux when using IPv6 resolvers.

Reviewed by: imp, Jose Luis Duran
Pull Request: https://github.com/freebsd/freebsd-src/pull/1118
2024-04-22 22:36:34 -06:00
..
check_error.d sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
check_internal_locks.d sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux.c linux: use sa_family_t for address family conversions 2024-03-29 13:35:37 -07:00
linux.h linux(4): Update my copyrights, add SPDX tag 2023-08-17 23:54:36 +03:00
linux_common.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_common.h linux: use sa_family_t for address family conversions 2024-03-29 13:35:37 -07:00
linux_dtrace.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_dummy.c linux(4): Update syscalls.master to 6.5 2023-09-25 12:24:58 +03:00
linux_elf.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_elf.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
linux_elf32.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_elf64.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_emul.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_emul.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_errno.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_errno.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_errno.inc sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_event.c linux(4): Convert flags in timerfd_create 2023-09-05 11:53:02 +03:00
linux_event.h linux(4): Convert flags in timerfd_create 2023-09-05 11:53:02 +03:00
linux_file.c Abstract UIO allocation and deallocation. 2024-02-10 11:38:04 -05:00
linux_file.h linux(4): Add a write syscall wrapper 2023-08-20 10:36:29 +03:00
linux_fork.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_fork.h linux(4): Update my copyrights, add SPDX tag 2023-08-17 23:54:36 +03:00
linux_futex.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_futex.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_getcwd.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_ioctl.c linux: Check for copyout errors in ioctl handlers 2023-12-27 10:13:15 -05:00
linux_ioctl.h linux(4): Add 2 Linux socket ioctl commands 2023-08-17 22:57:16 +03:00
linux_ipc.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_ipc.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_ipc64.h linux(4): Fix semid64_ds structure layout 2023-10-04 21:21:12 +03:00
linux_mib.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_mib.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_misc.c sys/compat/linux/linux_misc.c: remove an extra semicolon 2024-02-02 18:35:01 -07:00
linux_misc.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_mmap.c Reduce reliance on sys/sysproto.h pollution 2024-04-15 21:35:40 +01:00
linux_mmap.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_netlink.c linux: make linux_netlink_p->msg_from_linux be able to fail 2024-03-29 13:35:51 -07:00
linux_persona.h linux(4): Fix leftovers after 2ff63af9 2023-08-17 23:54:00 +03:00
linux_ptrace.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_rseq.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_siginfo.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_signal.c linux(4): On Linux SIGKILL can not be reset to default 2023-09-18 17:53:01 +03:00
linux_signal.h linux(4): Staticize lsiginfo_to_siginfo 2023-09-18 17:52:43 +03:00
linux_socket.c linux: ignore setsockopt(IPV6_RECVERR) 2024-04-22 22:36:34 -06:00
linux_socket.h linux(4): Drop bogus __arm__ condition due to lack of 32-bit arm support 2023-08-17 22:57:17 +03:00
linux_stats.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_sysctl.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_time.c sys: Remove $FreeBSD$: one-line .c pattern 2023-08-16 11:54:36 -06:00
linux_time.h sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
linux_timer.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_uid16.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_util.c linux_pwd_onexec: do not abort image activation if emul path does not exist 2024-02-22 03:31:39 +02:00
linux_util.h Reduce reliance on sys/sysproto.h pollution 2024-04-15 21:35:40 +01:00
linux_vdso.c linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743 2023-08-18 13:12:02 +03:00
linux_vdso.h linux(4): Remove include of sys/types.h from linux_vdso.h 2023-08-18 15:58:32 +03:00
linux_vdso_gtod.inc linux(4): Fix linker warning about undefined vdso symbols 2023-08-20 00:48:36 +03:00
linux_videodev2_compat.h linux(4): Fix leftovers after 2ff63af9 2023-08-17 23:54:00 +03:00
linux_videodev_compat.h linux(4): Fix leftovers after 2ff63af9 2023-08-17 23:54:00 +03:00
linux_xattr.c linux(4): Return ENOTSUP from listxattr instead of EPERM 2023-09-05 11:52:27 +03:00
stats_timing.d sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00
trace_futexes.d sys: Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:11 -06:00