[PATCH 1/3] rtnl: Add l_rtnl_route6_dump() and l_rtnl_route6_extract()

Add missing function for handling IPv6. Now we for both protocol versions the same functionality. While at it, factor out the l_rtnl_route4_extract to use inet_ntop which can handle both address families. --- ell/rtnl.c | 104 +++++++++++++++++++++++++++++++++-------------------- ell/rtnl.h | 6 ++++ 2 files changed, 72 insertions(+), 38 deletions(-) diff --git a/ell/rtnl.c b/ell/rtnl.c index ced9baab66b9..c94531144eb4 100644 --- a/ell/rtnl.c +++ b/ell/rtnl.c @@ -68,6 +68,50 @@ static size_t rta_add_data(void *rta_buf, unsigned short type, void *data, return RTA_SPACE(data_len); } +static void l_rtnl_route_extract(const struct rtmsg *rtmsg, uint32_t len, + int family, uint32_t *ifindex, char **dst, + char **gateway, char **src) +{ + struct rtattr *attr; + char buf[INET6_ADDRSTRLEN]; + + for (attr = RTM_RTA(rtmsg); RTA_OK(attr, len); + attr = RTA_NEXT(attr, len)) { + switch (attr->rta_type) { + case RTA_DST: + if (!dst) + break; + + inet_ntop(family, RTA_DATA(attr), buf, sizeof(buf)); + *dst = l_strdup(buf); + + break; + case RTA_GATEWAY: + if (!gateway) + break; + + inet_ntop(family, RTA_DATA(attr), buf, sizeof(buf)); + *gateway = l_strdup(buf); + + break; + case RTA_PREFSRC: + if (!src) + break; + + inet_ntop(family, RTA_DATA(attr), buf, sizeof(buf)); + *src = l_strdup(buf); + + break; + case RTA_OIF: + if (!ifindex) + break; + + *ifindex = *((uint32_t *) RTA_DATA(attr)); + break; + } + } +} + uint32_t l_rtnl_set_linkmode_and_operstate(struct l_netlink *rtnl, int ifindex, uint8_t linkmode, uint8_t operstate, l_netlink_command_func_t cb, @@ -294,44 +338,7 @@ void l_rtnl_route4_extract(const struct rtmsg *rtmsg, uint32_t len, uint32_t *ifindex, char **dst, char **gateway, char **src) { - struct in_addr in_addr; - struct rtattr *attr; - - for (attr = RTM_RTA(rtmsg); RTA_OK(attr, len); - attr = RTA_NEXT(attr, len)) { - switch (attr->rta_type) { - case RTA_DST: - if (!dst) - break; - - in_addr = *((struct in_addr *) RTA_DATA(attr)); - *dst = l_strdup(inet_ntoa(in_addr)); - - break; - case RTA_GATEWAY: - if (!gateway) - break; - - in_addr = *((struct in_addr *) RTA_DATA(attr)); - *gateway = l_strdup(inet_ntoa(in_addr)); - - break; - case RTA_PREFSRC: - if (!src) - break; - - in_addr = *((struct in_addr *) RTA_DATA(attr)); - *src = l_strdup(inet_ntoa(in_addr)); - - break; - case RTA_OIF: - if (!ifindex) - break; - - *ifindex = *((uint32_t *) RTA_DATA(attr)); - break; - } - } + l_rtnl_route_extract(rtmsg, len, AF_INET, ifindex, dst, gateway, src); } uint32_t l_rtnl_route4_dump(struct l_netlink *rtnl, @@ -560,6 +567,27 @@ uint32_t l_rtnl_ifaddr6_delete(struct l_netlink *rtnl, int ifindex, ip, cb, user_data, destroy); } +void l_rtnl_route6_extract(const struct rtmsg *rtmsg, uint32_t len, + uint32_t *ifindex, char **dst, char **gateway, + char **src) +{ + l_rtnl_route_extract(rtmsg, len, AF_INET6, ifindex, dst, gateway, src); +} + +uint32_t l_rtnl_route6_dump(struct l_netlink *rtnl, + l_netlink_command_func_t cb, void *user_data, + l_netlink_destroy_func_t destroy) +{ + struct rtmsg rtmsg; + + memset(&rtmsg, 0, sizeof(struct rtmsg)); + rtmsg.rtm_family = AF_INET6; + + return l_netlink_send(rtnl, RTM_GETROUTE, NLM_F_DUMP, &rtmsg, + sizeof(struct rtmsg), cb, user_data, + destroy); +} + static uint32_t l_rtnl_route6_change(struct l_netlink *rtnl, uint16_t nlmsg_type, int ifindex, const char *gateway, diff --git a/ell/rtnl.h b/ell/rtnl.h index a6e6d1323015..2be2eaee99e2 100644 --- a/ell/rtnl.h +++ b/ell/rtnl.h @@ -97,6 +97,12 @@ uint32_t l_rtnl_ifaddr6_delete(struct l_netlink *rtnl, int ifindex, l_netlink_command_func_t cb, void *user_data, l_netlink_destroy_func_t destroy); +void l_rtnl_route6_extract(const struct rtmsg *rtmsg, uint32_t len, + uint32_t *ifindex, char **dst, char **gateway, + char **src); +uint32_t l_rtnl_route6_dump(struct l_netlink *rtnl, + l_netlink_command_func_t cb, void *user_data, + l_netlink_destroy_func_t destroy); uint32_t l_rtnl_route6_add_gateway(struct l_netlink *rtnl, int ifindex, const char *gateway, uint32_t priority_offset, -- 2.25.0