Signed-off-by: Antonio Quartulli
---
src/openvpn/helper.c | 7 +++
src/openvpn/options.c | 13 +
src/openvpn/pool.c| 12
3 files changed, 24 insertions(+), 8 deletions(-)
diff --git a/src/openvpn/helper.c b/src/openvpn/helper.c
index 277e6972..2174b580 100644
--- a/src/openvpn/helper.c
+++ b/src/openvpn/helper.c
@@ -198,12 +198,11 @@ helper_client_server(struct options *o)
print_in6_addr( add_in6_addr( o->server_network_ipv6, 2), 0,
>gc );
o->ifconfig_ipv6_netbits = o->server_netbits_ipv6;
-/* pool starts at "base address + 0x1000" - leave enough room */
-ASSERT( o->server_netbits_ipv6 <= 112 );/* want 16 bits */
+/* basic sanity check */
+ASSERT(o->server_netbits_ipv6 >= 64 && o->server_netbits_ipv6 <= 124);
o->ifconfig_ipv6_pool_defined = true;
-o->ifconfig_ipv6_pool_base =
-add_in6_addr( o->server_network_ipv6, 0x1000 );
+o->ifconfig_ipv6_pool_base = add_in6_addr(o->server_network_ipv6, 2);
o->ifconfig_ipv6_pool_netbits = o->server_netbits_ipv6;
push_option( o, "tun-ipv6", M_USAGE );
diff --git a/src/openvpn/options.c b/src/openvpn/options.c
index 3798731e..327207bd 100644
--- a/src/openvpn/options.c
+++ b/src/openvpn/options.c
@@ -6714,9 +6714,12 @@ add_option(struct options *options,
msg(msglevel, "error parsing --server-ipv6 parameter");
goto err;
}
-if (netbits < 64 || netbits > 112)
+if (netbits < 64 || netbits > 124)
{
-msg( msglevel, "--server-ipv6 settings: only /64../112 supported
right now (not /%d)", netbits );
+msg(msglevel,
+"--server-ipv6 settings: network must be between /64 and /124
(not /%d)",
+netbits);
+
goto err;
}
options->server_ipv6_defined = true;
@@ -6836,9 +6839,11 @@ add_option(struct options *options,
msg(msglevel, "error parsing --ifconfig-ipv6-pool parameters");
goto err;
}
-if (netbits < 64 || netbits > 112)
+if (netbits < 64 || netbits > 124)
{
-msg( msglevel, "--ifconfig-ipv6-pool settings: only /64../112
supported right now (not /%d)", netbits );
+msg(msglevel,
+"--ifconfig-ipv6-pool settings: network must be between /64
and /124 (not /%d)",
+netbits);
goto err;
}
diff --git a/src/openvpn/pool.c b/src/openvpn/pool.c
index 42c6a38b..62cb0413 100644
--- a/src/openvpn/pool.c
+++ b/src/openvpn/pool.c
@@ -207,6 +207,12 @@ ifconfig_pool_init(const bool ipv4_pool, enum pool_type
type, in_addr_t start,
ASSERT(0);
}
+if (pool->ipv4.size < 2)
+{
+msg(M_FATAL, "IPv4 pool size is too small (%d), must be at least
2",
+pool->ipv4.size);
+}
+
msg(D_IFCONFIG_POOL, "IFCONFIG POOL: base=%s size=%d",
print_in_addr_t(pool->ipv4.base, 0, ), pool->ipv4.size);
}
@@ -245,6 +251,12 @@ ifconfig_pool_init(const bool ipv4_pool, enum pool_type
type, in_addr_t start,
? (1 << (128 - ipv6_netbits)) - base
: IFCONFIG_POOL_MAX;
+if (pool->ipv6.size < 2)
+{
+msg(M_FATAL, "IPv6 pool size is too small (%d), must be at least
2",
+pool->ipv6.size);
+}
+
msg(D_IFCONFIG_POOL, "IFCONFIG POOL IPv6: base=%s size=%d netbits=%d",
print_in6_addr(pool->ipv6.base, 0, ), pool->ipv6.size,
ipv6_netbits);
--
2.26.2
___
Openvpn-devel mailing list
Openvpn-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-devel