diff options
author | David S. Miller <davem@davemloft.net> | 2009-05-29 01:41:32 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-05-29 01:41:32 -0700 |
commit | 3f1f39c42b24d5c20eb593ce80b9c4d5ec1e2148 (patch) | |
tree | 785e5d697e9c2e4b8fd012a7e9c8aac263c186a5 /net | |
parent | dfe9a837987aacaffbce020fbf54d8e0afa4bde1 (diff) | |
parent | 7481806dcfd07e9a636155554f6f4b4fbd976381 (diff) |
Merge branch 'linux-2.6.31.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax
Diffstat (limited to 'net')
-rw-r--r-- | net/wimax/Makefile | 1 | ||||
-rw-r--r-- | net/wimax/debug-levels.h | 1 | ||||
-rw-r--r-- | net/wimax/debugfs.c | 1 | ||||
-rw-r--r-- | net/wimax/op-msg.c | 17 | ||||
-rw-r--r-- | net/wimax/op-state-get.c | 86 | ||||
-rw-r--r-- | net/wimax/stack.c | 5 |
6 files changed, 107 insertions, 4 deletions
diff --git a/net/wimax/Makefile b/net/wimax/Makefile index 5b80b941c2c..8f1510d0cc2 100644 --- a/net/wimax/Makefile +++ b/net/wimax/Makefile @@ -6,6 +6,7 @@ wimax-y := \ op-msg.o \ op-reset.o \ op-rfkill.o \ + op-state-get.o \ stack.o wimax-$(CONFIG_DEBUG_FS) += debugfs.o diff --git a/net/wimax/debug-levels.h b/net/wimax/debug-levels.h index 1c29123a3aa..0975adba6b7 100644 --- a/net/wimax/debug-levels.h +++ b/net/wimax/debug-levels.h @@ -36,6 +36,7 @@ enum d_module { D_SUBMODULE_DECLARE(op_msg), D_SUBMODULE_DECLARE(op_reset), D_SUBMODULE_DECLARE(op_rfkill), + D_SUBMODULE_DECLARE(op_state_get), D_SUBMODULE_DECLARE(stack), }; diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c index 94d216a4640..6c9bedb7431 100644 --- a/net/wimax/debugfs.c +++ b/net/wimax/debugfs.c @@ -61,6 +61,7 @@ int wimax_debugfs_add(struct wimax_dev *wimax_dev) __debugfs_register("wimax_dl_", op_msg, dentry); __debugfs_register("wimax_dl_", op_reset, dentry); __debugfs_register("wimax_dl_", op_rfkill, dentry); + __debugfs_register("wimax_dl_", op_state_get, dentry); __debugfs_register("wimax_dl_", stack, dentry); result = 0; out: diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c index 9ad4d893a56..d631a17186b 100644 --- a/net/wimax/op-msg.c +++ b/net/wimax/op-msg.c @@ -108,6 +108,12 @@ * Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as * wimax_msg_send() depends on skb->data being placed at the * beginning of the user message. + * + * Unlike other WiMAX stack calls, this call can be used way early, + * even before wimax_dev_add() is called, as long as the + * wimax_dev->net_dev pointer is set to point to a proper + * net_dev. This is so that drivers can use it early in case they need + * to send stuff around or communicate with user space. */ struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev, const char *pipe_name, @@ -115,7 +121,7 @@ struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev, gfp_t gfp_flags) { int result; - struct device *dev = wimax_dev->net_dev->dev.parent; + struct device *dev = wimax_dev_to_dev(wimax_dev); size_t msg_size; void *genl_msg; struct sk_buff *skb; @@ -161,7 +167,6 @@ error_genlmsg_put: error_new: nlmsg_free(skb); return ERR_PTR(result); - } EXPORT_SYMBOL_GPL(wimax_msg_alloc); @@ -256,10 +261,16 @@ EXPORT_SYMBOL_GPL(wimax_msg_len); * Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as * wimax_msg_send() depends on skb->data being placed at the * beginning of the user message. + * + * Unlike other WiMAX stack calls, this call can be used way early, + * even before wimax_dev_add() is called, as long as the + * wimax_dev->net_dev pointer is set to point to a proper + * net_dev. This is so that drivers can use it early in case they need + * to send stuff around or communicate with user space. */ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb) { - struct device *dev = wimax_dev->net_dev->dev.parent; + struct device *dev = wimax_dev_to_dev(wimax_dev); void *msg = skb->data; size_t size = skb->len; might_sleep(); diff --git a/net/wimax/op-state-get.c b/net/wimax/op-state-get.c new file mode 100644 index 00000000000..a76b8fcb056 --- /dev/null +++ b/net/wimax/op-state-get.c @@ -0,0 +1,86 @@ +/* + * Linux WiMAX + * Implement and export a method for getting a WiMAX device current state + * + * Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> + * + * Based on previous WiMAX core work by: + * Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com> + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <net/wimax.h> +#include <net/genetlink.h> +#include <linux/wimax.h> +#include <linux/security.h> +#include "wimax-internal.h" + +#define D_SUBMODULE op_state_get +#include "debug-levels.h" + + +static const +struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1] = { + [WIMAX_GNL_STGET_IFIDX] = { + .type = NLA_U32, + }, +}; + + +/* + * Exporting to user space over generic netlink + * + * Parse the state get command from user space, return a combination + * value that describe the current state. + * + * No attributes. + */ +static +int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info) +{ + int result, ifindex; + struct wimax_dev *wimax_dev; + struct device *dev; + + d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info); + result = -ENODEV; + if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) { + printk(KERN_ERR "WIMAX_GNL_OP_STATE_GET: can't find IFIDX " + "attribute\n"); + goto error_no_wimax_dev; + } + ifindex = nla_get_u32(info->attrs[WIMAX_GNL_STGET_IFIDX]); + wimax_dev = wimax_dev_get_by_genl_info(info, ifindex); + if (wimax_dev == NULL) + goto error_no_wimax_dev; + dev = wimax_dev_to_dev(wimax_dev); + /* Execute the operation and send the result back to user space */ + result = wimax_state_get(wimax_dev); + dev_put(wimax_dev->net_dev); +error_no_wimax_dev: + d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result); + return result; +} + + +struct genl_ops wimax_gnl_state_get = { + .cmd = WIMAX_GNL_OP_STATE_GET, + .flags = GENL_ADMIN_PERM, + .policy = wimax_gnl_state_get_policy, + .doit = wimax_gnl_doit_state_get, + .dumpit = NULL, +}; diff --git a/net/wimax/stack.c b/net/wimax/stack.c index 933e1422b09..79fb7d7c640 100644 --- a/net/wimax/stack.c +++ b/net/wimax/stack.c @@ -402,13 +402,15 @@ EXPORT_SYMBOL_GPL(wimax_dev_init); extern struct genl_ops wimax_gnl_msg_from_user, wimax_gnl_reset, - wimax_gnl_rfkill; + wimax_gnl_rfkill, + wimax_gnl_state_get; static struct genl_ops *wimax_gnl_ops[] = { &wimax_gnl_msg_from_user, &wimax_gnl_reset, &wimax_gnl_rfkill, + &wimax_gnl_state_get, }; @@ -533,6 +535,7 @@ struct d_level D_LEVEL[] = { D_SUBMODULE_DEFINE(op_msg), D_SUBMODULE_DEFINE(op_reset), D_SUBMODULE_DEFINE(op_rfkill), + D_SUBMODULE_DEFINE(op_state_get), D_SUBMODULE_DEFINE(stack), }; size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL); |