| Pau Espin Pedrol | f612ffe | 2019-08-20 13:24:55 +0200 | [diff] [blame] | 1 | /* |
| 2 | * misc helpers |
| 3 | * Copyright 2019 sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * |
| 5 | * The contents of this file may be used under the terms of the GNU |
| 6 | * General Public License Version 2, provided that the above copyright |
| 7 | * notice and this permission notice is included in all copies or |
| 8 | * substantial portions of the software. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include "../gtp/pdp.h" |
| 13 | |
| 14 | #include "ippool.h" |
| 15 | #include "in46_addr.h" |
| 16 | |
| 17 | /*! Get the peer of pdp based on IP version used. |
| 18 | * \param[in] pdp PDP context to select the peer from. |
| 19 | * \param[in] v4v6 IP version to select. Valid values are 4 and 6. |
| 20 | * \returns The selected peer matching the given IP version. NULL if not present. |
| 21 | */ |
| 22 | struct ippoolm_t *pdp_get_peer_ipv(struct pdp_t *pdp, bool is_ipv6) { |
| 23 | uint8_t i; |
| 24 | |
| 25 | for (i = 0; i < 2; i++) { |
| 26 | struct ippoolm_t * ippool = pdp->peer[i]; |
| 27 | if (!ippool) |
| 28 | continue; |
| 29 | if (is_ipv6 && in46a_is_v6(&ippool->addr)) |
| 30 | return ippool; |
| 31 | else if (!is_ipv6 && in46a_is_v4(&ippool->addr)) |
| 32 | return ippool; |
| 33 | } |
| 34 | return NULL; |
| 35 | } |