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conf: Given IPv4 address and no netmask, assign RFC 790-style classes

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Provide a sane default, instead of /0, if an address is given, and it
doesn't correspond to any host address we could find via netlink.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2022-02-18 19:58:13 +01:00
parent eb18f862cb
commit 01ae772dcc
1 changed files with 10 additions and 10 deletions
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2
conf.c
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@ -468,6 +468,7 @@ static void conf_ip(struct ctx *c)
nl_addr(0, c->ifi, AF_INET, &c->addr4, &mask_len, NULL);
c->mask4 = htonl(0xffffffff << (32 - mask_len));
}
if (!c->mask4) {
if (IN_CLASSA(ntohl(c->addr4)))
@ -479,7 +480,6 @@ static void conf_ip(struct ctx *c)
else
c->mask4 = 0xffffffff;
}
}
memcpy(&c->addr4_seen, &c->addr4, sizeof(c->addr4_seen));