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drivers: Move common definitions for wired drivers out

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Refactor the common parts of wired drivers code into a shared file, so
that they can be reused by other drivers. The macsec_qca driver already
contains a lot of code duplication from the wired driver, and the
macsec_linux driver would do the same. A structure to hold data common
to all wired drivers is added and used in all these drivers.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This commit is contained in:
Sabrina Dubroca 2016-11-27 20:08:44 +01:00 committed by Jouni Malinen
parent bf88401d23
commit 0abc8d10cc
3 changed files with 103 additions and 86 deletions
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65
src/drivers/driver_macsec_qca.c
View file

@ -31,6 +31,7 @@
#include "common/ieee802_1x_defs.h" #include "common/ieee802_1x_defs.h"
#include "pae/ieee802_1x_kay.h" #include "pae/ieee802_1x_kay.h"
#include "driver.h" #include "driver.h"
#include "driver_wired_common.h"
#include "nss_macsec_secy.h" #include "nss_macsec_secy.h"
#include "nss_macsec_secy_rx.h" #include "nss_macsec_secy_rx.h"
@ -53,21 +54,14 @@
#pragma pack(pop) #pragma pack(pop)
#endif /* _MSC_VER */ #endif /* _MSC_VER */
static const u8 pae_group_addr[ETH_ALEN] =
{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
struct channel_map { struct channel_map {
struct ieee802_1x_mka_sci sci; struct ieee802_1x_mka_sci sci;
}; };
struct macsec_qca_data { struct macsec_qca_data {
char ifname[IFNAMSIZ + 1]; struct driver_wired_common_data common;
u32 secy_id;
void *ctx;
int sock; /* raw packet socket for driver access */ u32 secy_id;
int pf_sock;
int membership, multi, iff_allmulti, iff_up;
/* shadow */ /* shadow */
Boolean always_include_sci; Boolean always_include_sci;
@ -322,43 +316,43 @@ static void * macsec_qca_init(void *ctx, const char *ifname)
drv = os_zalloc(sizeof(*drv)); drv = os_zalloc(sizeof(*drv));
if (drv == NULL) if (drv == NULL)
return NULL; return NULL;
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname)); os_strlcpy(drv->common.ifname, ifname, sizeof(drv->common.ifname));
drv->ctx = ctx; drv->common.ctx = ctx;
/* Board specific settings */ /* Board specific settings */
if (os_memcmp("eth2", drv->ifname, 4) == 0) if (os_memcmp("eth2", drv->common.ifname, 4) == 0)
drv->secy_id = 1; drv->secy_id = 1;
else if (os_memcmp("eth3", drv->ifname, 4) == 0) else if (os_memcmp("eth3", drv->common.ifname, 4) == 0)
drv->secy_id = 2; drv->secy_id = 2;
else else
drv->secy_id = -1; drv->secy_id = -1;
#ifdef __linux__ #ifdef __linux__
drv->pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0); drv->common.pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
if (drv->pf_sock < 0) if (drv->common.pf_sock < 0)
wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno)); wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno));
#else /* __linux__ */ #else /* __linux__ */
drv->pf_sock = -1; drv->common.pf_sock = -1;
#endif /* __linux__ */ #endif /* __linux__ */
if (macsec_qca_get_ifflags(ifname, &flags) == 0 && if (macsec_qca_get_ifflags(ifname, &flags) == 0 &&
!(flags & IFF_UP) && !(flags & IFF_UP) &&
macsec_qca_set_ifflags(ifname, flags | IFF_UP) == 0) { macsec_qca_set_ifflags(ifname, flags | IFF_UP) == 0) {
drv->iff_up = 1; drv->common.iff_up = 1;
} }
if (macsec_qca_multicast_membership(drv->pf_sock, if (macsec_qca_multicast_membership(drv->common.pf_sock,
if_nametoindex(drv->ifname), if_nametoindex(drv->common.ifname),
pae_group_addr, 1) == 0) { pae_group_addr, 1) == 0) {
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"%s: Added multicast membership with packet socket", "%s: Added multicast membership with packet socket",
__func__); __func__);
drv->membership = 1; drv->common.membership = 1;
} else if (macsec_qca_multi(ifname, pae_group_addr, 1) == 0) { } else if (macsec_qca_multi(ifname, pae_group_addr, 1) == 0) {
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"%s: Added multicast membership with SIOCADDMULTI", "%s: Added multicast membership with SIOCADDMULTI",
__func__); __func__);
drv->multi = 1; drv->common.multi = 1;
} else if (macsec_qca_get_ifflags(ifname, &flags) < 0) { } else if (macsec_qca_get_ifflags(ifname, &flags) < 0) {
wpa_printf(MSG_INFO, "%s: Could not get interface flags", wpa_printf(MSG_INFO, "%s: Could not get interface flags",
__func__); __func__);
@ -375,7 +369,7 @@ static void * macsec_qca_init(void *ctx, const char *ifname)
return NULL; return NULL;
} else { } else {
wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode", __func__); wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode", __func__);
drv->iff_allmulti = 1; drv->common.iff_allmulti = 1;
} }
#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
{ {
@ -397,39 +391,40 @@ static void macsec_qca_deinit(void *priv)
struct macsec_qca_data *drv = priv; struct macsec_qca_data *drv = priv;
int flags; int flags;
if (drv->membership && if (drv->common.membership &&
macsec_qca_multicast_membership(drv->pf_sock, macsec_qca_multicast_membership(drv->common.pf_sock,
if_nametoindex(drv->ifname), if_nametoindex(drv->common.ifname),
pae_group_addr, 0) < 0) { pae_group_addr, 0) < 0) {
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"%s: Failed to remove PAE multicast group (PACKET)", "%s: Failed to remove PAE multicast group (PACKET)",
__func__); __func__);
} }
if (drv->multi && if (drv->common.multi &&
macsec_qca_multi(drv->ifname, pae_group_addr, 0) < 0) { macsec_qca_multi(drv->common.ifname, pae_group_addr, 0) < 0) {
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"%s: Failed to remove PAE multicast group (SIOCDELMULTI)", "%s: Failed to remove PAE multicast group (SIOCDELMULTI)",
__func__); __func__);
} }
if (drv->iff_allmulti && if (drv->common.iff_allmulti &&
(macsec_qca_get_ifflags(drv->ifname, &flags) < 0 || (macsec_qca_get_ifflags(drv->common.ifname, &flags) < 0 ||
macsec_qca_set_ifflags(drv->ifname, flags & ~IFF_ALLMULTI) < 0)) { macsec_qca_set_ifflags(drv->common.ifname,
flags & ~IFF_ALLMULTI) < 0)) {
wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode", wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode",
__func__); __func__);
} }
if (drv->iff_up && if (drv->common.iff_up &&
macsec_qca_get_ifflags(drv->ifname, &flags) == 0 && macsec_qca_get_ifflags(drv->common.ifname, &flags) == 0 &&
(flags & IFF_UP) && (flags & IFF_UP) &&
macsec_qca_set_ifflags(drv->ifname, flags & ~IFF_UP) < 0) { macsec_qca_set_ifflags(drv->common.ifname, flags & ~IFF_UP) < 0) {
wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down", wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down",
__func__); __func__);
} }
if (drv->pf_sock != -1) if (drv->common.pf_sock != -1)
close(drv->pf_sock); close(drv->common.pf_sock);
os_free(drv); os_free(drv);
} }

99
src/drivers/driver_wired.c
View file

@ -12,6 +12,7 @@
#include "common.h" #include "common.h"
#include "eloop.h" #include "eloop.h"
#include "driver.h" #include "driver.h"
#include "driver_wired_common.h"
#include <sys/ioctl.h> #include <sys/ioctl.h>
#undef IFNAMSIZ #undef IFNAMSIZ
@ -42,20 +43,12 @@ struct ieee8023_hdr {
#pragma pack(pop) #pragma pack(pop)
#endif /* _MSC_VER */ #endif /* _MSC_VER */
static const u8 pae_group_addr[ETH_ALEN] =
{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
struct wpa_driver_wired_data { struct wpa_driver_wired_data {
char ifname[IFNAMSIZ + 1]; struct driver_wired_common_data common;
void *ctx;
int sock; /* raw packet socket for driver access */
int dhcp_sock; /* socket for dhcp packets */ int dhcp_sock; /* socket for dhcp packets */
int use_pae_group_addr; int use_pae_group_addr;
int pf_sock;
int membership, multi, iff_allmulti, iff_up;
}; };
@ -208,21 +201,22 @@ static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
struct sockaddr_in addr2; struct sockaddr_in addr2;
int n = 1; int n = 1;
drv->sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_PAE)); drv->common.sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_PAE));
if (drv->sock < 0) { if (drv->common.sock < 0) {
wpa_printf(MSG_ERROR, "socket[PF_PACKET,SOCK_RAW]: %s", wpa_printf(MSG_ERROR, "socket[PF_PACKET,SOCK_RAW]: %s",
strerror(errno)); strerror(errno));
return -1; return -1;
} }
if (eloop_register_read_sock(drv->sock, handle_read, drv->ctx, NULL)) { if (eloop_register_read_sock(drv->common.sock, handle_read,
drv->common.ctx, NULL)) {
wpa_printf(MSG_INFO, "Could not register read socket"); wpa_printf(MSG_INFO, "Could not register read socket");
return -1; return -1;
} }
os_memset(&ifr, 0, sizeof(ifr)); os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); os_strlcpy(ifr.ifr_name, drv->common.ifname, sizeof(ifr.ifr_name));
if (ioctl(drv->sock, SIOCGIFINDEX, &ifr) != 0) { if (ioctl(drv->common.sock, SIOCGIFINDEX, &ifr) != 0) {
wpa_printf(MSG_ERROR, "ioctl(SIOCGIFINDEX): %s", wpa_printf(MSG_ERROR, "ioctl(SIOCGIFINDEX): %s",
strerror(errno)); strerror(errno));
return -1; return -1;
@ -234,13 +228,14 @@ static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d", wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
addr.sll_ifindex); addr.sll_ifindex);
if (bind(drv->sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) { if (bind(drv->common.sock, (struct sockaddr *) &addr, sizeof(addr)) < 0)
{
wpa_printf(MSG_ERROR, "bind: %s", strerror(errno)); wpa_printf(MSG_ERROR, "bind: %s", strerror(errno));
return -1; return -1;
} }
/* filter multicast address */ /* filter multicast address */
if (wired_multicast_membership(drv->sock, ifr.ifr_ifindex, if (wired_multicast_membership(drv->common.sock, ifr.ifr_ifindex,
pae_group_addr, 1) < 0) { pae_group_addr, 1) < 0) {
wpa_printf(MSG_ERROR, "wired: Failed to add multicast group " wpa_printf(MSG_ERROR, "wired: Failed to add multicast group "
"membership"); "membership");
@ -248,8 +243,8 @@ static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
} }
os_memset(&ifr, 0, sizeof(ifr)); os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); os_strlcpy(ifr.ifr_name, drv->common.ifname, sizeof(ifr.ifr_name));
if (ioctl(drv->sock, SIOCGIFHWADDR, &ifr) != 0) { if (ioctl(drv->common.sock, SIOCGIFHWADDR, &ifr) != 0) {
wpa_printf(MSG_ERROR, "ioctl(SIOCGIFHWADDR): %s", wpa_printf(MSG_ERROR, "ioctl(SIOCGIFHWADDR): %s",
strerror(errno)); strerror(errno));
return -1; return -1;
@ -269,8 +264,8 @@ static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
return -1; return -1;
} }
if (eloop_register_read_sock(drv->dhcp_sock, handle_dhcp, drv->ctx, if (eloop_register_read_sock(drv->dhcp_sock, handle_dhcp,
NULL)) { drv->common.ctx, NULL)) {
wpa_printf(MSG_INFO, "Could not register read socket"); wpa_printf(MSG_INFO, "Could not register read socket");
return -1; return -1;
} }
@ -294,7 +289,7 @@ static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
} }
os_memset(&ifr, 0, sizeof(ifr)); os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_ifrn.ifrn_name, drv->ifname, IFNAMSIZ); os_strlcpy(ifr.ifr_ifrn.ifrn_name, drv->common.ifname, IFNAMSIZ);
if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BINDTODEVICE, if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BINDTODEVICE,
(char *) &ifr, sizeof(ifr)) < 0) { (char *) &ifr, sizeof(ifr)) < 0) {
wpa_printf(MSG_ERROR, wpa_printf(MSG_ERROR,
@ -343,7 +338,7 @@ static int wired_send_eapol(void *priv, const u8 *addr,
pos = (u8 *) (hdr + 1); pos = (u8 *) (hdr + 1);
os_memcpy(pos, data, data_len); os_memcpy(pos, data, data_len);
res = send(drv->sock, (u8 *) hdr, len, 0); res = send(drv->common.sock, (u8 *) hdr, len, 0);
os_free(hdr); os_free(hdr);
if (res < 0) { if (res < 0) {
@ -368,8 +363,9 @@ static void * wired_driver_hapd_init(struct hostapd_data *hapd,
return NULL; return NULL;
} }
drv->ctx = hapd; drv->common.ctx = hapd;
os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname)); os_strlcpy(drv->common.ifname, params->ifname,
sizeof(drv->common.ifname));
drv->use_pae_group_addr = params->use_pae_group_addr; drv->use_pae_group_addr = params->use_pae_group_addr;
if (wired_init_sockets(drv, params->own_addr)) { if (wired_init_sockets(drv, params->own_addr)) {
@ -385,9 +381,9 @@ static void wired_driver_hapd_deinit(void *priv)
{ {
struct wpa_driver_wired_data *drv = priv; struct wpa_driver_wired_data *drv = priv;
if (drv->sock >= 0) { if (drv->common.sock >= 0) {
eloop_unregister_read_sock(drv->sock); eloop_unregister_read_sock(drv->common.sock);
close(drv->sock); close(drv->common.sock);
} }
if (drv->dhcp_sock >= 0) { if (drv->dhcp_sock >= 0) {
@ -564,33 +560,33 @@ static void * wpa_driver_wired_init(void *ctx, const char *ifname)
drv = os_zalloc(sizeof(*drv)); drv = os_zalloc(sizeof(*drv));
if (drv == NULL) if (drv == NULL)
return NULL; return NULL;
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname)); os_strlcpy(drv->common.ifname, ifname, sizeof(drv->common.ifname));
drv->ctx = ctx; drv->common.ctx = ctx;
#ifdef __linux__ #ifdef __linux__
drv->pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0); drv->common.pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
if (drv->pf_sock < 0) if (drv->common.pf_sock < 0)
wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno)); wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno));
#else /* __linux__ */ #else /* __linux__ */
drv->pf_sock = -1; drv->common.pf_sock = -1;
#endif /* __linux__ */ #endif /* __linux__ */
if (wpa_driver_wired_get_ifflags(ifname, &flags) == 0 && if (wpa_driver_wired_get_ifflags(ifname, &flags) == 0 &&
!(flags & IFF_UP) && !(flags & IFF_UP) &&
wpa_driver_wired_set_ifflags(ifname, flags | IFF_UP) == 0) { wpa_driver_wired_set_ifflags(ifname, flags | IFF_UP) == 0) {
drv->iff_up = 1; drv->common.iff_up = 1;
} }
if (wired_multicast_membership(drv->pf_sock, if (wired_multicast_membership(drv->common.pf_sock,
if_nametoindex(drv->ifname), if_nametoindex(drv->common.ifname),
pae_group_addr, 1) == 0) { pae_group_addr, 1) == 0) {
wpa_printf(MSG_DEBUG, "%s: Added multicast membership with " wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
"packet socket", __func__); "packet socket", __func__);
drv->membership = 1; drv->common.membership = 1;
} else if (wpa_driver_wired_multi(ifname, pae_group_addr, 1) == 0) { } else if (wpa_driver_wired_multi(ifname, pae_group_addr, 1) == 0) {
wpa_printf(MSG_DEBUG, "%s: Added multicast membership with " wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
"SIOCADDMULTI", __func__); "SIOCADDMULTI", __func__);
drv->multi = 1; drv->common.multi = 1;
} else if (wpa_driver_wired_get_ifflags(ifname, &flags) < 0) { } else if (wpa_driver_wired_get_ifflags(ifname, &flags) < 0) {
wpa_printf(MSG_INFO, "%s: Could not get interface " wpa_printf(MSG_INFO, "%s: Could not get interface "
"flags", __func__); "flags", __func__);
@ -608,7 +604,7 @@ static void * wpa_driver_wired_init(void *ctx, const char *ifname)
} else { } else {
wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode", wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode",
__func__); __func__);
drv->iff_allmulti = 1; drv->common.iff_allmulti = 1;
} }
#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
{ {
@ -630,38 +626,39 @@ static void wpa_driver_wired_deinit(void *priv)
struct wpa_driver_wired_data *drv = priv; struct wpa_driver_wired_data *drv = priv;
int flags; int flags;
if (drv->membership && if (drv->common.membership &&
wired_multicast_membership(drv->pf_sock, wired_multicast_membership(drv->common.pf_sock,
if_nametoindex(drv->ifname), if_nametoindex(drv->common.ifname),
pae_group_addr, 0) < 0) { pae_group_addr, 0) < 0) {
wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast " wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
"group (PACKET)", __func__); "group (PACKET)", __func__);
} }
if (drv->multi && if (drv->common.multi &&
wpa_driver_wired_multi(drv->ifname, pae_group_addr, 0) < 0) { wpa_driver_wired_multi(drv->common.ifname, pae_group_addr, 0) < 0) {
wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast " wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
"group (SIOCDELMULTI)", __func__); "group (SIOCDELMULTI)", __func__);
} }
if (drv->iff_allmulti && if (drv->common.iff_allmulti &&
(wpa_driver_wired_get_ifflags(drv->ifname, &flags) < 0 || (wpa_driver_wired_get_ifflags(drv->common.ifname, &flags) < 0 ||
wpa_driver_wired_set_ifflags(drv->ifname, wpa_driver_wired_set_ifflags(drv->common.ifname,
flags & ~IFF_ALLMULTI) < 0)) { flags & ~IFF_ALLMULTI) < 0)) {
wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode", wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode",
__func__); __func__);
} }
if (drv->iff_up && if (drv->common.iff_up &&
wpa_driver_wired_get_ifflags(drv->ifname, &flags) == 0 && wpa_driver_wired_get_ifflags(drv->common.ifname, &flags) == 0 &&
(flags & IFF_UP) && (flags & IFF_UP) &&
wpa_driver_wired_set_ifflags(drv->ifname, flags & ~IFF_UP) < 0) { wpa_driver_wired_set_ifflags(drv->common.ifname,
flags & ~IFF_UP) < 0) {
wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down", wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down",
__func__); __func__);
} }
if (drv->pf_sock != -1) if (drv->common.pf_sock != -1)
close(drv->pf_sock); close(drv->common.pf_sock);
os_free(drv); os_free(drv);
} }

25
src/drivers/driver_wired_common.h Normal file
View file

@ -0,0 +1,25 @@
/*
* Common definitions for Wired Ethernet driver interfaces
* Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004, Gunter Burchardt <tira@isx.de>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef DRIVER_WIRED_COMMON_H
#define DRIVER_WIRED_COMMON_H
struct driver_wired_common_data {
char ifname[IFNAMSIZ + 1];
void *ctx;
int sock; /* raw packet socket for driver access */
int pf_sock;
int membership, multi, iff_allmulti, iff_up;
};
static const u8 pae_group_addr[ETH_ALEN] =
{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
#endif /* DRIVER_WIRED_COMMON_H */