X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2F8021q%2Fvlan.c;h=b661f47bf10a0320889f22e7e1fcf7f3496b6baa;hb=ddedc658fc56bb5b9b200d7f4df6e93e1d0d8048;hp=08f14f6c5fd6f6368c325123fb2d88c00384f343;hpb=2106b531eaa2edd0c2dfa735a0556c08c7ba3c86;p=linux-2.6-omap-h63xx.git diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 08f14f6c5fd..b661f47bf10 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -18,22 +18,20 @@ * 2 of the License, or (at your option) any later version. */ -#include /* for copy_from_user */ #include #include #include #include -#include -#include -#include #include #include #include #include #include #include +#include #include #include +#include #include #include "vlan.h" @@ -84,13 +82,12 @@ static struct vlan_group *__vlan_find_group(struct net_device *real_dev) * * Must be invoked with RCU read lock (no preempt) */ -struct net_device *__find_vlan_dev(struct net_device *real_dev, - unsigned short VID) +struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id) { struct vlan_group *grp = __vlan_find_group(real_dev); if (grp) - return vlan_group_get_device(grp, VID); + return vlan_group_get_device(grp, vlan_id); return NULL; } @@ -118,14 +115,14 @@ static struct vlan_group *vlan_group_alloc(struct net_device *real_dev) return grp; } -static int vlan_group_prealloc_vid(struct vlan_group *vg, int vid) +static int vlan_group_prealloc_vid(struct vlan_group *vg, u16 vlan_id) { struct net_device **array; unsigned int size; ASSERT_RTNL(); - array = vg->vlan_devices_arrays[vid / VLAN_GROUP_ARRAY_PART_LEN]; + array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; if (array != NULL) return 0; @@ -134,7 +131,7 @@ static int vlan_group_prealloc_vid(struct vlan_group *vg, int vid) if (array == NULL) return -ENOBUFS; - vg->vlan_devices_arrays[vid / VLAN_GROUP_ARRAY_PART_LEN] = array; + vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN] = array; return 0; } @@ -148,7 +145,7 @@ void unregister_vlan_dev(struct net_device *dev) struct vlan_dev_info *vlan = vlan_dev_info(dev); struct net_device *real_dev = vlan->real_dev; struct vlan_group *grp; - unsigned short vlan_id = vlan->vlan_id; + u16 vlan_id = vlan->vlan_id; ASSERT_RTNL(); @@ -166,8 +163,12 @@ void unregister_vlan_dev(struct net_device *dev) synchronize_net(); + unregister_netdevice(dev); + /* If the group is now empty, kill off the group. */ if (grp->nr_vlans == 0) { + vlan_gvrp_uninit_applicant(real_dev); + if (real_dev->features & NETIF_F_HW_VLAN_RX) real_dev->vlan_rx_register(real_dev, NULL); @@ -179,8 +180,6 @@ void unregister_vlan_dev(struct net_device *dev) /* Get rid of the vlan's reference to real_dev */ dev_put(real_dev); - - unregister_netdevice(dev); } static void vlan_transfer_operstate(const struct net_device *dev, @@ -204,7 +203,7 @@ static void vlan_transfer_operstate(const struct net_device *dev, } } -int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id) +int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id) { char *name = real_dev->name; @@ -241,7 +240,7 @@ int register_vlan_dev(struct net_device *dev) { struct vlan_dev_info *vlan = vlan_dev_info(dev); struct net_device *real_dev = vlan->real_dev; - unsigned short vlan_id = vlan->vlan_id; + u16 vlan_id = vlan->vlan_id; struct vlan_group *grp, *ngrp = NULL; int err; @@ -250,15 +249,18 @@ int register_vlan_dev(struct net_device *dev) ngrp = grp = vlan_group_alloc(real_dev); if (!grp) return -ENOBUFS; + err = vlan_gvrp_init_applicant(real_dev); + if (err < 0) + goto out_free_group; } err = vlan_group_prealloc_vid(grp, vlan_id); if (err < 0) - goto out_free_group; + goto out_uninit_applicant; err = register_netdevice(dev); if (err < 0) - goto out_free_group; + goto out_uninit_applicant; /* Account for reference in struct vlan_dev_info */ dev_hold(real_dev); @@ -279,6 +281,9 @@ int register_vlan_dev(struct net_device *dev) return 0; +out_uninit_applicant: + if (ngrp) + vlan_gvrp_uninit_applicant(real_dev); out_free_group: if (ngrp) vlan_group_free(ngrp); @@ -288,8 +293,7 @@ out_free_group: /* Attach a VLAN device to a mac address (ie Ethernet Card). * Returns 0 if the device was created or a negative error code otherwise. */ -static int register_vlan_device(struct net_device *real_dev, - unsigned short VLAN_ID) +static int register_vlan_device(struct net_device *real_dev, u16 vlan_id) { struct net_device *new_dev; struct net *net = dev_net(real_dev); @@ -297,10 +301,10 @@ static int register_vlan_device(struct net_device *real_dev, char name[IFNAMSIZ]; int err; - if (VLAN_ID >= VLAN_VID_MASK) + if (vlan_id >= VLAN_VID_MASK) return -ERANGE; - err = vlan_check_real_dev(real_dev, VLAN_ID); + err = vlan_check_real_dev(real_dev, vlan_id); if (err < 0) return err; @@ -308,26 +312,26 @@ static int register_vlan_device(struct net_device *real_dev, switch (vn->name_type) { case VLAN_NAME_TYPE_RAW_PLUS_VID: /* name will look like: eth1.0005 */ - snprintf(name, IFNAMSIZ, "%s.%.4i", real_dev->name, VLAN_ID); + snprintf(name, IFNAMSIZ, "%s.%.4i", real_dev->name, vlan_id); break; case VLAN_NAME_TYPE_PLUS_VID_NO_PAD: /* Put our vlan.VID in the name. * Name will look like: vlan5 */ - snprintf(name, IFNAMSIZ, "vlan%i", VLAN_ID); + snprintf(name, IFNAMSIZ, "vlan%i", vlan_id); break; case VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD: /* Put our vlan.VID in the name. * Name will look like: eth0.5 */ - snprintf(name, IFNAMSIZ, "%s.%i", real_dev->name, VLAN_ID); + snprintf(name, IFNAMSIZ, "%s.%i", real_dev->name, vlan_id); break; case VLAN_NAME_TYPE_PLUS_VID: /* Put our vlan.VID in the name. * Name will look like: vlan0005 */ default: - snprintf(name, IFNAMSIZ, "vlan%.4i", VLAN_ID); + snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id); } new_dev = alloc_netdev(sizeof(struct vlan_dev_info), name, @@ -342,7 +346,7 @@ static int register_vlan_device(struct net_device *real_dev, */ new_dev->mtu = real_dev->mtu; - vlan_dev_info(new_dev)->vlan_id = VLAN_ID; /* 1 through VLAN_VID_MASK */ + vlan_dev_info(new_dev)->vlan_id = vlan_id; vlan_dev_info(new_dev)->real_dev = real_dev; vlan_dev_info(new_dev)->dent = NULL; vlan_dev_info(new_dev)->flags = VLAN_FLAG_REORDER_HDR; @@ -536,7 +540,6 @@ static struct notifier_block vlan_notifier_block __read_mostly = { static int vlan_ioctl_handler(struct net *net, void __user *arg) { int err; - unsigned short vid = 0; struct vlan_ioctl_args args; struct net_device *dev = NULL; @@ -563,8 +566,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) goto out; err = -EINVAL; - if (args.cmd != ADD_VLAN_CMD && - !(dev->priv_flags & IFF_802_1Q_VLAN)) + if (args.cmd != ADD_VLAN_CMD && !is_vlan_dev(dev)) goto out; } @@ -592,9 +594,9 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) err = -EPERM; if (!capable(CAP_NET_ADMIN)) break; - err = vlan_dev_set_vlan_flag(dev, - args.u.flag, - args.vlan_qos); + err = vlan_dev_change_flags(dev, + args.vlan_qos ? args.u.flag : 0, + args.u.flag); break; case SET_VLAN_NAME_TYPE_CMD: @@ -638,8 +640,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) case GET_VLAN_VID_CMD: err = 0; - vlan_dev_get_vid(dev, &vid); - args.u.VID = vid; + args.u.VID = vlan_dev_vlan_id(dev); if (copy_to_user(arg, &args, sizeof(struct vlan_ioctl_args))) err = -EFAULT; @@ -714,14 +715,20 @@ static int __init vlan_proto_init(void) if (err < 0) goto err2; - err = vlan_netlink_init(); + err = vlan_gvrp_init(); if (err < 0) goto err3; + err = vlan_netlink_init(); + if (err < 0) + goto err4; + dev_add_pack(&vlan_packet_type); vlan_ioctl_set(vlan_ioctl_handler); return 0; +err4: + vlan_gvrp_uninit(); err3: unregister_netdevice_notifier(&vlan_notifier_block); err2: @@ -746,8 +753,9 @@ static void __exit vlan_cleanup_module(void) BUG_ON(!hlist_empty(&vlan_group_hash[i])); unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops); - synchronize_net(); + + vlan_gvrp_uninit(); } module_init(vlan_proto_init);