public inbox for newlib-cvs@sourceware.org help / color / mirror / Atom feed
From: Sebastian Huber <sh@sourceware.org> To: newlib-cvs@sourceware.org Subject: [newlib-cygwin] kernel: deprecate Internet Class A/B/C Date: Mon, 11 Jul 2022 11:55:15 +0000 (GMT) [thread overview] Message-ID: <20220711115515.6660A385742A@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a9a87c19217336e3738d2fbff91468855c6a307c commit a9a87c19217336e3738d2fbff91468855c6a307c Author: Mike Karels <karels@FreeBSD.org> Date: Tue Oct 26 22:01:09 2021 -0500 kernel: deprecate Internet Class A/B/C Hide historical Class A/B/C macros unless IN_HISTORICAL_NETS is defined; define it for user level. Define IN_MULTICAST separately from IN_CLASSD, and use it in pf instead of IN_CLASSD. Stop using class for setting default masks when not specified; instead, define new default mask (24 bits). Warn when an Internet address is set without a mask. MFC after: 1 month Reviewed by: cy Differential Revision: https://reviews.freebsd.org/D32708 Diff: --- newlib/libc/sys/rtems/include/netinet/in.h | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/newlib/libc/sys/rtems/include/netinet/in.h b/newlib/libc/sys/rtems/include/netinet/in.h index 059f50d9b..4c692b6df 100644 --- a/newlib/libc/sys/rtems/include/netinet/in.h +++ b/newlib/libc/sys/rtems/include/netinet/in.h @@ -342,10 +342,15 @@ __END_DECLS #define IPPORT_MAX 65535 /* - * Definitions of bits in internet address integers. - * On subnets, the decomposition of addresses to host and net parts - * is done according to subnet mask, not the masks here. + * Historical definitions of bits in internet address integers + * (pre-CIDR). Class A/B/C are long obsolete, and now deprecated. + * Hide these definitions from the kernel unless IN_HISTORICAL_NETS + * is defined. Provide the historical definitions to user level for now. */ +#ifndef _KERNEL +#define IN_HISTORICAL_NETS +#endif +#ifdef IN_HISTORICAL_NETS #define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) #define IN_CLASSA_NET 0xff000000 #define IN_CLASSA_NSHIFT 24 @@ -362,12 +367,17 @@ __END_DECLS #define IN_CLASSC_NET 0xffffff00 #define IN_CLASSC_NSHIFT 8 #define IN_CLASSC_HOST 0x000000ff +#endif /* IN_HISTORICAL_NETS */ + +#define IN_NETMASK_DEFAULT 0xffffff00 /* mask when forced to guess */ -#define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) +#define IN_MULTICAST(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) +#ifdef IN_HISTORICAL_NETS +#define IN_CLASSD(i) IN_MULTICAST(i) #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ -#define IN_MULTICAST(i) IN_CLASSD(i) +#endif /* IN_HISTORICAL_NETS */ #define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) #define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) @@ -398,7 +408,9 @@ __END_DECLS #define INADDR_ALLMDNS_GROUP ((in_addr_t)0xe00000fb) /* 224.0.0.251 */ #define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ +#ifdef IN_HISTORICAL_NETS #define IN_LOOPBACKNET 127 /* official! */ +#endif /* IN_HISTORICAL_NETS */ #define IN_RFC3021_MASK ((in_addr_t)0xfffffffe)
reply other threads:[~2022-07-11 11:55 UTC|newest] Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20220711115515.6660A385742A@sourceware.org \ --to=sh@sourceware.org \ --cc=newlib-cvs@sourceware.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).