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bedc005a7a
Just putting the infrastructure in place and having it disabled is actually good progress here; have the compiler make itself useful and tell us what we have to do to get the basics right. (The next commit will cause a *lot* of compile errors as soon as `PIM_V6_TEMP_BREAK` is set; but there is no reason to force everything into a single step here.) To enable `pim_addr = in6_addr`, run `make PIM_V6_TEMP_BREAK=1` (remove previous compile results with `rm pimd/pim6d-*.o`) Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
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* PIM address generalizations
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* Copyright (C) 2022 David Lamparter for NetDEF, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PIMD_PIM_ADDR_H
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#define _PIMD_PIM_ADDR_H
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#include "jhash.h"
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/* temporarily disable IPv6 types to keep code compiling.
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* Defining PIM_V6_TEMP_BREAK will show a lot of compile errors - they are
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* very useful to see TODOs.
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*/
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#if PIM_IPV == 4 || !defined(PIM_V6_TEMP_BREAK)
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typedef struct in_addr pim_addr;
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#define PIM_ADDRSTRLEN INET_ADDRSTRLEN
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#else
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typedef struct in6_addr pim_addr;
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#define PIM_ADDRSTRLEN INET6_ADDRSTRLEN
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#endif
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/* don't use this struct directly, use the pim_sgaddr typedef */
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struct _pim_sgaddr {
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pim_addr grp;
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pim_addr src;
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};
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typedef struct _pim_sgaddr pim_sgaddr;
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static inline int pim_sgaddr_cmp(const pim_sgaddr a, const pim_sgaddr b)
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{
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/* memcmp over the entire struct = memcmp(grp) + memcmp(src) */
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return memcmp(&a, &b, sizeof(a));
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}
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static inline uint32_t pim_sgaddr_hash(const pim_sgaddr a, uint32_t initval)
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{
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return jhash2((uint32_t *)&a, sizeof(a) / sizeof(uint32_t), initval);
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}
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#ifdef _FRR_ATTRIBUTE_PRINTFRR
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#pragma FRR printfrr_ext "%pPA" (pim_addr *)
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#pragma FRR printfrr_ext "%pSG" (pim_sgaddr *)
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#endif
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/*
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* There is no pim_sgaddr2str(). This is intentional. Instead, use:
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* snprintfrr(buf, sizeof(buf), "%pPA", sgaddr)
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* (and note that snprintfrr is implicit for vty_out and zlog_*)
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*/
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#endif /* _PIMD_PIM_ADDR_H */
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