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ppp: Verify magic number is not zero

This commit is contained in:
Denis Kenzior 2010-04-06 17:39:16 -05:00
parent 130ac43255
commit e0c8704705
1 changed files with 10 additions and 1 deletions
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11
gatchat/ppp_lcp.c
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@ -105,10 +105,19 @@ static guint lcp_option_scan(struct pppcp_data *pppcp,
case ACCM:
case AUTH_PROTO:
/* XXX check to make sure it's a proto we recognize */
case MAGIC_NUMBER:
case PFC:
case ACFC:
return OPTION_ACCEPT;
case MAGIC_NUMBER:
{
guint32 magic = get_host_long(option->data);
if (magic == 0)
return OPTION_REJECT;
return OPTION_ACCEPT;
}
}
return OPTION_REJECT;