1 /* Exim: OS-specific C header file for FreeBSD */
2 /* Copyright (c) University of Cambridge 1995 - 2018 */
3 /* See the file NOTICE for conditions of use and distribution. */
9 #define HAVE_BSD_GETLOADAVG
10 #define HAVE_SETCLASSRESOURCES
12 #define HAVE_SYS_MOUNT_H
13 #define SIOCGIFCONF_GIVES_ADDR
14 #define HAVE_SRANDOMDEV
15 #define HAVE_ARC4RANDOM
17 /* Applications should not call arc4random_stir() explicitly after
18 * FreeBSD r227520 (approximately 1000002).
19 * Set NOT_HAVE_ARC4RANDOM_STIR if the version released is past
21 #if __FreeBSD_version >= 1000002
22 # define NOT_HAVE_ARC4RANDOM_STIR
25 typedef struct flock flock_t;
27 /* iconv arg2 type: libiconv in Ports uses "const char* * inbuf" and was
28 * traditionally the only approach available. The iconv functionality
29 * in libc is "char ** restrict src".
31 * <https://www.freebsd.org/doc/en/books/porters-handbook/using-iconv.html>
32 * says that libc has iconv since 2013, in 10-CURRENT. FreeBSD man-pages
33 * shows it included in 10.0-RELEASE. Writing this in 2017, 10.3 is the
34 * oldest supported release, so we should assume non-libiconv by default.
35 * (Actually, people still using old releases past EOL; we shouldn't support
36 * them but I don't want to deal with howls of complaints because we dare
37 * to not support the unsupported, so guard this on FreeBSD 10+)
39 * Thus we no longer override iconv.
41 * However, if libiconv is installed, and anything adds /usr/local/include
42 * to include-path (likely) then we'll get that. So define a variable
43 * which makes the libiconv try to not interfere with OS iconv.
46 # define LIBICONV_PLUG
48 /* for more specific version constraints, look at __FreeBSD_version
49 * from <sys/param.h> */
51 /* When using DKIM, setting OS_SENDFILE can increase
52 performance on outgoing mail a bit. */
55 extern ssize_t os_sendfile(int, int, off_t *, size_t);
60 /* TCP_FASTOPEN support. There does not seems to be a
61 MSG_FASTOPEN defined yet... */
62 #define EXIM_TFO_PROBE
64 #include <netinet/tcp.h> /* for TCP_FASTOPEN */
65 #include <sys/socket.h> /* for MSG_FASTOPEN */
66 #if defined(TCP_FASTOPEN) && !defined(MSG_FASTOPEN)
67 # define MSG_FASTOPEN 0x20000000
70 /* for TCP state-variable values, for TFO logging */
71 #include <netinet/tcp_fsm.h>
72 #define TCP_SYN_RECV TCPS_SYN_RECEIVED