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Refactor openBSD pftables code to remove blatant copyright violation.

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This commit is contained in:
Simon Kelley
2016-08-13 22:34:11 +01:00
parent 6c45519e18
commit 396750cef5
1 changed files with 33 additions and 59 deletions
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84
src/tables.c
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@@ -53,52 +53,6 @@ static char *pfr_strerror(int errnum)
}
}
static int pfr_add_tables(struct pfr_table *tbl, int size, int *nadd, int flags)
{
struct pfioc_table io;
if (size < 0 || (size && tbl == NULL))
{
errno = EINVAL;
return (-1);
}
bzero(&io, sizeof io);
io.pfrio_flags = flags;
io.pfrio_buffer = tbl;
io.pfrio_esize = sizeof(*tbl);
io.pfrio_size = size;
if (ioctl(dev, DIOCRADDTABLES, &io))
return (-1);
if (nadd != NULL)
*nadd = io.pfrio_nadd;
return (0);
}
static int fill_addr(const struct all_addr *ipaddr, int flags, struct pfr_addr* addr) {
if ( !addr || !ipaddr)
{
my_syslog(LOG_ERR, _("error: fill_addr missused"));
return -1;
}
bzero(addr, sizeof(*addr));
#ifdef HAVE_IPV6
if (flags & F_IPV6)
{
addr->pfra_af = AF_INET6;
addr->pfra_net = 0x80;
memcpy(&(addr->pfra_ip6addr), &(ipaddr->addr), sizeof(struct in6_addr));
}
else
#endif
{
addr->pfra_af = AF_INET;
addr->pfra_net = 0x20;
addr->pfra_ip4addr.s_addr = ipaddr->addr.addr4.s_addr;
}
return 1;
}
/*****************************************************************************/
void ipset_init(void)
{
@@ -116,9 +70,8 @@ int add_to_ipset(const char *setname, const struct all_addr *ipaddr,
struct pfr_addr addr;
struct pfioc_table io;
struct pfr_table table;
int n = 0, rc = 0;
if ( dev == -1 )
if (dev == -1)
{
my_syslog(LOG_ERR, _("warning: no opened pf devices %s"), pf_device);
return -1;
@@ -126,31 +79,52 @@ int add_to_ipset(const char *setname, const struct all_addr *ipaddr,
bzero(&table, sizeof(struct pfr_table));
table.pfrt_flags |= PFR_TFLAG_PERSIST;
if ( strlen(setname) >= PF_TABLE_NAME_SIZE )
if (strlen(setname) >= PF_TABLE_NAME_SIZE)
{
my_syslog(LOG_ERR, _("error: cannot use table name %s"), setname);
errno = ENAMETOOLONG;
return -1;
}
if ( strlcpy(table.pfrt_name, setname,
if (strlcpy(table.pfrt_name, setname,
sizeof(table.pfrt_name)) >= sizeof(table.pfrt_name))
{
my_syslog(LOG_ERR, _("error: cannot strlcpy table name %s"), setname);
return -1;
}
if ((rc = pfr_add_tables(&table, 1, &n, 0)))
bzero(&io, sizeof io);
io.pfrio_flags = 0;
io.pfrio_buffer = &table;
io.pfrio_esize = sizeof(table);
io.pfrio_size = 1;
if (ioctl(dev, DIOCRADDTABLES, &io))
{
my_syslog(LOG_WARNING, _("warning: pfr_add_tables: %s(%d)"),
pfr_strerror(errno),rc);
my_syslog(LOG_WARNING, _("IPset: error:%s"), pfr_strerror(errno));
return -1;
}
table.pfrt_flags &= ~PFR_TFLAG_PERSIST;
if (n)
if (io.pfrio_nadd)
my_syslog(LOG_INFO, _("info: table created"));
fill_addr(ipaddr,flags,&addr);
bzero(&addr, sizeof(addr));
#ifdef HAVE_IPV6
if (flags & F_IPV6)
{
addr.pfra_af = AF_INET6;
addr.pfra_net = 0x80;
memcpy(&(addr.pfra_ip6addr), &(ipaddr->addr), sizeof(struct in6_addr));
}
else
#endif
{
addr.pfra_af = AF_INET;
addr.pfra_net = 0x20;
addr.pfra_ip4addr.s_addr = ipaddr->addr.addr4.s_addr;
}
bzero(&io, sizeof(io));
io.pfrio_flags = 0;
io.pfrio_table = table;