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author | Martin Willi <martin@strongswan.org> | 2008-11-14 14:23:11 +0000 |
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committer | Martin Willi <martin@strongswan.org> | 2008-11-14 14:23:11 +0000 |
commit | 21bf86f740c6aa2043fdf851ff8b4d01f2749c7c (patch) | |
tree | 0fdf6a50f1fcff241226f8de94c4dece6edb6db8 /src/charon/plugins/kernel_netlink | |
parent | 32ec3c1a8b073ae0e3ccf3f4ff9fb6c3c41c9646 (diff) | |
download | strongswan-21bf86f740c6aa2043fdf851ff8b4d01f2749c7c.tar.bz2 strongswan-21bf86f740c6aa2043fdf851ff8b4d01f2749c7c.tar.xz |
using aligned buffers for netlink
Diffstat (limited to 'src/charon/plugins/kernel_netlink')
3 files changed, 23 insertions, 14 deletions
diff --git a/src/charon/plugins/kernel_netlink/kernel_netlink_ipsec.c b/src/charon/plugins/kernel_netlink/kernel_netlink_ipsec.c index 79b4882bc..3714582e4 100644 --- a/src/charon/plugins/kernel_netlink/kernel_netlink_ipsec.c +++ b/src/charon/plugins/kernel_netlink/kernel_netlink_ipsec.c @@ -735,7 +735,7 @@ static status_t get_spi_internal(private_kernel_netlink_ipsec_t *this, host_t *src, host_t *dst, u_int8_t proto, u_int32_t min, u_int32_t max, u_int32_t reqid, u_int32_t *spi) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr, *out; struct xfrm_userspi_info *userspi; u_int32_t received_spi = 0; @@ -858,7 +858,7 @@ static status_t add_sa(private_kernel_netlink_ipsec_t *this, ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, bool encap, bool inbound) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; char *alg_name; struct nlmsghdr *hdr; struct xfrm_usersa_info *sa; @@ -1081,7 +1081,7 @@ static status_t get_replay_state(private_kernel_netlink_ipsec_t *this, u_int32_t spi, protocol_id_t protocol, host_t *dst, struct xfrm_replay_state *replay) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr, *out = NULL; struct xfrm_aevent_id *out_aevent = NULL, *aevent_id; size_t len; @@ -1168,7 +1168,7 @@ static status_t get_replay_state(private_kernel_netlink_ipsec_t *this, static status_t del_sa(private_kernel_netlink_ipsec_t *this, host_t *dst, u_int32_t spi, protocol_id_t protocol, u_int16_t cpi) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr; struct xfrm_usersa_id *sa_id; @@ -1211,7 +1211,8 @@ static status_t update_sa(private_kernel_netlink_ipsec_t *this, host_t *new_src, host_t *new_dst, bool old_encap, bool new_encap) { - unsigned char request[NETLINK_BUFFER_SIZE], *pos; + netlink_buf_t request; + u_char *pos; struct nlmsghdr *hdr, *out = NULL; struct xfrm_usersa_id *sa_id; struct xfrm_usersa_info *out_sa = NULL, *sa; @@ -1397,7 +1398,7 @@ static status_t add_policy(private_kernel_netlink_ipsec_t *this, iterator_t *iterator; policy_entry_t *current, *policy; bool found = FALSE; - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct xfrm_userpolicy_info *policy_info; struct nlmsghdr *hdr; @@ -1582,7 +1583,7 @@ static status_t query_policy(private_kernel_netlink_ipsec_t *this, traffic_selector_t *dst_ts, policy_dir_t direction, u_int32_t *use_time) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *out = NULL, *hdr; struct xfrm_userpolicy_id *policy_id; struct xfrm_userpolicy_info *policy = NULL; @@ -1654,7 +1655,7 @@ static status_t del_policy(private_kernel_netlink_ipsec_t *this, { policy_entry_t *current, policy, *to_delete = NULL; route_entry_t *route; - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr; struct xfrm_userpolicy_id *policy_id; enumerator_t *enumerator; diff --git a/src/charon/plugins/kernel_netlink/kernel_netlink_net.c b/src/charon/plugins/kernel_netlink/kernel_netlink_net.c index 10858ea50..40036e147 100644 --- a/src/charon/plugins/kernel_netlink/kernel_netlink_net.c +++ b/src/charon/plugins/kernel_netlink/kernel_netlink_net.c @@ -761,7 +761,7 @@ static bool addr_in_subnet(chunk_t addr, chunk_t net, int net_len) static host_t *get_route(private_kernel_netlink_net_t *this, host_t *dest, bool nexthop, host_t *candidate) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr, *out, *current; struct rtmsg *msg; chunk_t chunk; @@ -948,7 +948,7 @@ static host_t* get_nexthop(private_kernel_netlink_net_t *this, host_t *dest) static status_t manage_ipaddr(private_kernel_netlink_net_t *this, int nlmsg_type, int flags, int if_index, host_t *ip) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr; struct ifaddrmsg *msg; chunk_t chunk; @@ -1116,7 +1116,7 @@ static status_t manage_srcroute(private_kernel_netlink_net_t *this, int nlmsg_ty int flags, chunk_t dst_net, u_int8_t prefixlen, host_t *gateway, host_t *src_ip, char *if_name) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr; struct rtmsg *msg; int ifindex; @@ -1196,7 +1196,7 @@ status_t del_route(private_kernel_netlink_net_t *this, chunk_t dst_net, */ static status_t init_address_list(private_kernel_netlink_net_t *this) { - char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *out, *current, *in; struct rtgenmsg *msg; size_t len; @@ -1288,7 +1288,7 @@ static status_t init_address_list(private_kernel_netlink_net_t *this) static status_t manage_rule(private_kernel_netlink_net_t *this, int nlmsg_type, u_int32_t table, u_int32_t prio) { - unsigned char request[NETLINK_BUFFER_SIZE]; + netlink_buf_t request; struct nlmsghdr *hdr; struct rtmsg *msg; chunk_t chunk; diff --git a/src/charon/plugins/kernel_netlink/kernel_netlink_shared.h b/src/charon/plugins/kernel_netlink/kernel_netlink_shared.h index 84a0813e8..691879317 100644 --- a/src/charon/plugins/kernel_netlink/kernel_netlink_shared.h +++ b/src/charon/plugins/kernel_netlink/kernel_netlink_shared.h @@ -20,7 +20,15 @@ #include <library.h> -#define NETLINK_BUFFER_SIZE 1024 +#include <linux/rtnetlink.h> + +/** + * General purpose netlink buffer. + * + * 1024 byte is currently sufficient for all operations. Some platform + * require an enforced aligment to four bytes (e.g. ARM). + */ +typedef u_char netlink_buf_t[1024] __attribute__((aligned(RTA_ALIGNTO))); typedef struct netlink_socket_t netlink_socket_t; |