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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2003 Yasuhiro Ohara
*/
#include <zebra.h>
#include "log.h"
#include "ospf6_proto.h"
void ospf6_prefix_in6_addr(struct in6_addr *in6, const void *prefix_buf,
const struct ospf6_prefix *p)
{
ptrdiff_t in6_off = (caddr_t)p->addr - (caddr_t)prefix_buf;
memset(in6, 0, sizeof(struct in6_addr));
memcpy(in6, (uint8_t *)prefix_buf + in6_off,
OSPF6_PREFIX_SPACE(p->prefix_length));
}
void ospf6_prefix_apply_mask(struct ospf6_prefix *op)
{
uint8_t *pnt, mask;
int index, offset;
pnt = (uint8_t *)((caddr_t)op + sizeof(struct ospf6_prefix));
index = op->prefix_length / 8;
offset = op->prefix_length % 8;
mask = 0xff << (8 - offset);
if (index > 16) {
zlog_warn("Prefix length too long: %d", op->prefix_length);
return;
}
/* nonzero mask means no check for this byte because if it contains
* prefix bits it must be there for us to write */
if (mask)
pnt[index++] &= mask;
while (index < OSPF6_PREFIX_SPACE(op->prefix_length))
pnt[index++] = 0;
}
void ospf6_prefix_options_printbuf(uint8_t prefix_options, char *buf, int size)
{
const char *dn, *p, *mc, *la, *nu;
dn = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_DN) ? "DN" : "--");
p = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_P) ? "P" : "--");
mc = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_MC) ? "MC" : "--");
la = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_LA) ? "LA" : "--");
nu = (CHECK_FLAG(prefix_options, OSPF6_PREFIX_OPTION_NU) ? "NU" : "--");
snprintf(buf, size, "%s|%s|%s|%s|%s", dn, p, mc, la, nu);
}
void ospf6_capability_printbuf(char capability, char *buf, int size)
{
char w, v, e, b;
w = (capability & OSPF6_ROUTER_BIT_W ? 'W' : '-');
v = (capability & OSPF6_ROUTER_BIT_V ? 'V' : '-');
e = (capability & OSPF6_ROUTER_BIT_E ? 'E' : '-');
b = (capability & OSPF6_ROUTER_BIT_B ? 'B' : '-');
snprintf(buf, size, "----%c%c%c%c", w, v, e, b);
}
void ospf6_options_printbuf(uint8_t *options, char *buf, int size)
{
const char *dc, *r, *n, *mc, *e, *v6, *af, *at, *l;
dc = (OSPF6_OPT_ISSET(options, OSPF6_OPT_DC) ? "DC" : "--");
r = (OSPF6_OPT_ISSET(options, OSPF6_OPT_R) ? "R" : "-");
n = (OSPF6_OPT_ISSET(options, OSPF6_OPT_N) ? "N" : "-");
mc = (OSPF6_OPT_ISSET(options, OSPF6_OPT_MC) ? "MC" : "--");
e = (OSPF6_OPT_ISSET(options, OSPF6_OPT_E) ? "E" : "-");
v6 = (OSPF6_OPT_ISSET(options, OSPF6_OPT_V6) ? "V6" : "--");
af = (OSPF6_OPT_ISSET_EXT(options, OSPF6_OPT_AF) ? "AF" : "--");
at = (OSPF6_OPT_ISSET_EXT(options, OSPF6_OPT_AT) ? "AT" : "--");
l = (OSPF6_OPT_ISSET_EXT(options, OSPF6_OPT_L) ? "L" : "-");
snprintf(buf, size, "%s|%s|%s|-|-|%s|%s|%s|%s|%s|%s", at, l, af, dc, r,
n, mc, e, v6);
}
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