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Merge pull request #11299 from llueder/ndp_cpp_compliant

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net/ndp: make addr array ptr c++ compliant
This commit is contained in:
Martine Lenders 2019-09-26 22:34:45 +02:00 committed by GitHub
commit 062bc732ea
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 24 additions and 6 deletions
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22
sys/include/net/ndp.h
View File

@ -334,10 +334,27 @@ typedef struct __attribute__((packed)) {
} ndp_opt_mtu_t;
/**
* @brief Recursive DNS server option format
* @brief Recursive DNS server option format without payload
* @extends ndp_opt_t
*
* @see [RFC 8106, section 5.1](https://tools.ietf.org/html/rfc8106#section-5.1)
* @see ndp_opt_rdnss_impl_t
*/
typedef struct __attribute__((packed)) {
uint8_t type; /**< option type */
uint8_t len; /**< length in units of 8 octets */
network_uint16_t resv; /**< reserved field */
network_uint32_t ltime; /**< lifetime in seconds */
} ndp_opt_rdnss_t;
#ifndef __cplusplus
/**
* @brief Recursive DNS server option format with payload
* @extends ndp_opt_rdnss_t
* @details Auxiliary struct that contains a zero-length array as convenience
* pointer to the addresses. Only for use in C, invalid in ISO-C++.
*
* @see [RFC 8106, section 5.1](https://tools.ietf.org/html/rfc8106#section-5.1)
*/
typedef struct __attribute__((packed)) {
uint8_t type; /**< option type */
@ -345,7 +362,8 @@ typedef struct __attribute__((packed)) {
network_uint16_t resv; /**< reserved field */
network_uint32_t ltime; /**< lifetime in seconds */
ipv6_addr_t addrs[]; /**< addresses of IPv6 recursive DNS servers */
} ndp_opt_rdnss_t;
} ndp_opt_rdnss_impl_t;
#endif
#ifdef __cplusplus
}

6
sys/net/gnrc/network_layer/ipv6/nib/nib.c
View File

@ -413,7 +413,7 @@ static void _handle_mtuo(gnrc_netif_t *netif, const icmpv6_hdr_t *icmpv6,
const ndp_opt_mtu_t *mtuo);
#if GNRC_IPV6_NIB_CONF_DNS
static uint32_t _handle_rdnsso(gnrc_netif_t *netif, const icmpv6_hdr_t *icmpv6,
const ndp_opt_rdnss_t *rdnsso);
const ndp_opt_rdnss_impl_t *rdnsso);
#endif
#if GNRC_IPV6_NIB_CONF_MULTIHOP_P6C
static uint32_t _handle_pio(gnrc_netif_t *netif, const icmpv6_hdr_t *icmpv6,
@ -732,7 +732,7 @@ static void _handle_rtr_adv(gnrc_netif_t *netif, const ipv6_hdr_t *ipv6,
case NDP_OPT_RDNSS:
next_timeout = _min(_handle_rdnsso(netif,
(icmpv6_hdr_t *)rtr_adv,
(ndp_opt_rdnss_t *)opt),
(ndp_opt_rdnss_impl_t *)opt),
next_timeout);
break;
#endif
@ -1352,7 +1352,7 @@ static void _handle_mtuo(gnrc_netif_t *netif, const icmpv6_hdr_t *icmpv6,
#if GNRC_IPV6_NIB_CONF_DNS
static uint32_t _handle_rdnsso(gnrc_netif_t *netif, const icmpv6_hdr_t *icmpv6,
const ndp_opt_rdnss_t *rdnsso)
const ndp_opt_rdnss_impl_t *rdnsso)
{
uint32_t ltime = UINT32_MAX;
const ipv6_addr_t *addr;

2
sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
View File

@ -234,7 +234,7 @@ gnrc_pktsnip_t *gnrc_ndp_opt_rdnss_build(uint32_t ltime, ipv6_addr_t *addrs,
gnrc_pktsnip_t *pkt = gnrc_ndp_opt_build(NDP_OPT_RDNSS, opt_size, next);
if (pkt != NULL) {
ndp_opt_rdnss_t *rdnss_opt = pkt->data;
ndp_opt_rdnss_impl_t *rdnss_opt = pkt->data;
rdnss_opt->resv.u16 = 0;
rdnss_opt->ltime = byteorder_htonl(ltime);
for (unsigned i = 0; i < addrs_num; i++) {