static int iwpm_user_pid = IWPM_PID_UNDEFINED;
static atomic_t echo_nlmsg_seq;
+/**
+ * iwpm_valid_pid - Check if the userspace iwarp port mapper pid is valid
+ *
+ * Returns true if the pid is greater than zero, otherwise returns false
+ */
int iwpm_valid_pid(void)
{
return iwpm_user_pid > 0;
}
-/*
- * iwpm_register_pid - Send a netlink query to user space
- * for the iwarp port mapper pid
+/**
+ * iwpm_register_pid - Send a netlink query to userspace
+ * to get the iwarp port mapper pid
+ * @pm_msg: Contains driver info to send to the userspace port mapper
+ * @nl_client: The index of the netlink client
*
* nlmsg attributes:
* [IWPM_NLA_REG_PID_SEQ]
return ret;
}
-/*
- * iwpm_add_mapping - Send a netlink add mapping message
- * to the port mapper
+/**
+ * iwpm_add_mapping - Send a netlink add mapping request to
+ * the userspace port mapper
+ * @pm_msg: Contains the local ip/tcp address info to send
+ * @nl_client: The index of the netlink client
+ *
* nlmsg attributes:
* [IWPM_NLA_MANAGE_MAPPING_SEQ]
* [IWPM_NLA_MANAGE_ADDR]
* [IWPM_NLA_MANAGE_FLAGS]
+ *
+ * If the request is successful, the pm_msg stores
+ * the port mapper response (mapped address info)
*/
int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
{
return ret;
}
-/*
- * iwpm_add_and_query_mapping - Send a netlink add and query
- * mapping message to the port mapper
+/**
+ * iwpm_add_and_query_mapping - Process the port mapper response to
+ * iwpm_add_and_query_mapping request
+ * @pm_msg: Contains the local ip/tcp address info to send
+ * @nl_client: The index of the netlink client
+ *
* nlmsg attributes:
* [IWPM_NLA_QUERY_MAPPING_SEQ]
* [IWPM_NLA_QUERY_LOCAL_ADDR]
return ret;
}
-/*
- * iwpm_remove_mapping - Send a netlink remove mapping message
- * to the port mapper
+/**
+ * iwpm_remove_mapping - Send a netlink remove mapping request
+ * to the userspace port mapper
+ *
+ * @local_addr: Local ip/tcp address to remove
+ * @nl_client: The index of the netlink client
+ *
* nlmsg attributes:
* [IWPM_NLA_MANAGE_MAPPING_SEQ]
* [IWPM_NLA_MANAGE_ADDR]
[IWPM_NLA_RREG_PID_ERR] = { .type = NLA_U16 }
};
-/*
- * iwpm_register_pid_cb - Process a port mapper response to
- * iwpm_register_pid()
+/**
+ * iwpm_register_pid_cb - Process the port mapper response to
+ * iwpm_register_pid query
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * If successful, the function receives the userspace port mapper pid
+ * which is used in future communication with the port mapper
*/
int iwpm_register_pid_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_RMANAGE_MAPPING_ERR] = { .type = NLA_U16 }
};
-/*
- * iwpm_add_mapping_cb - Process a port mapper response to
- * iwpm_add_mapping()
+/**
+ * iwpm_add_mapping_cb - Process the port mapper response to
+ * iwpm_add_mapping request
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
*/
int iwpm_add_mapping_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_RQUERY_MAPPING_ERR] = { .type = NLA_U16 }
};
-/*
- * iwpm_add_and_query_mapping_cb - Process a port mapper response to
- * iwpm_add_and_query_mapping()
+/**
+ * iwpm_add_and_query_mapping_cb - Process the port mapper response to
+ * iwpm_add_and_query_mapping request
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
*/
int iwpm_add_and_query_mapping_cb(struct sk_buff *skb,
struct netlink_callback *cb)
return 0;
}
-/*
- * iwpm_remote_info_cb - Process a port mapper message, containing
- * the remote connecting peer address info
+/**
+ * iwpm_remote_info_cb - Process remote connecting peer address info, which
+ * the port mapper has received from the connecting peer
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Stores the IPv4/IPv6 address info in a hash table
*/
int iwpm_remote_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_MAPINFO_ULIB_VER] = { .type = NLA_U16 }
};
-/*
- * iwpm_mapping_info_cb - Process a port mapper request for mapping info
+/**
+ * iwpm_mapping_info_cb - Process a notification that the userspace
+ * port mapper daemon is started
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Using the received port mapper pid, send all the local mapping
+ * info records to the userspace port mapper
*/
int iwpm_mapping_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_MAPINFO_ACK_NUM] = { .type = NLA_U32 }
};
-/*
- * iwpm_ack_mapping_info_cb - Process a port mapper ack for
- * the provided mapping info records
+/**
+ * iwpm_ack_mapping_info_cb - Process the port mapper ack for
+ * the provided local mapping info records
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
*/
int iwpm_ack_mapping_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_ERR_CODE] = { .type = NLA_U16 },
};
-/*
- * iwpm_mapping_error_cb - Process a port mapper error message
+/**
+ * iwpm_mapping_error_cb - Process port mapper notification for error
+ *
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
*/
int iwpm_mapping_error_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
[IWPM_NLA_HELLO_ABI_VERSION] = { .type = NLA_U16 }
};
-/*
- * iwpm_hello_cb - Process a port mapper hello request
+/**
+ * iwpm_hello_cb - Process a hello message from iwpmd
+ *
+ * @skb:
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Using the received port mapper pid, send the kernel's abi_version
+ * after adjusting it to support the iwpmd version.
*/
int iwpm_hello_cb(struct sk_buff *skb, struct netlink_callback *cb)
{
static DEFINE_MUTEX(iwpm_admin_lock);
static struct iwpm_admin_data iwpm_admin;
+/**
+ * iwpm_init - Allocate resources for the iwarp port mapper
+ * @nl_client: The index of the netlink client
+ *
+ * Should be called when network interface goes up.
+ */
int iwpm_init(u8 nl_client)
{
int ret = 0;
static void free_hash_bucket(void);
static void free_reminfo_bucket(void);
+/**
+ * iwpm_exit - Deallocate resources for the iwarp port mapper
+ * @nl_client: The index of the netlink client
+ *
+ * Should be called when network interface goes down.
+ */
int iwpm_exit(u8 nl_client)
{
static struct hlist_head *get_mapinfo_hash_bucket(struct sockaddr_storage *,
struct sockaddr_storage *);
+/**
+ * iwpm_create_mapinfo - Store local and mapped IPv4/IPv6 address
+ * info in a hash table
+ * @local_addr: Local ip/tcp address
+ * @mapped_addr: Mapped local ip/tcp address
+ * @nl_client: The index of the netlink client
+ * @map_flags: IWPM mapping flags
+ */
int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
struct sockaddr_storage *mapped_sockaddr,
u8 nl_client, u32 map_flags)
return ret;
}
+/**
+ * iwpm_remove_mapinfo - Remove local and mapped IPv4/IPv6 address
+ * info from the hash table
+ * @local_addr: Local ip/tcp address
+ * @mapped_local_addr: Mapped local ip/tcp address
+ *
+ * Returns err code if mapping info is not found in the hash table,
+ * otherwise returns 0
+ */
int iwpm_remove_mapinfo(struct sockaddr_storage *local_sockaddr,
struct sockaddr_storage *mapped_local_addr)
{
spin_unlock_irqrestore(&iwpm_reminfo_lock, flags);
}
+/**
+ * iwpm_get_remote_info - Get the remote connecting peer address info
+ *
+ * @mapped_loc_addr: Mapped local address of the listening peer
+ * @mapped_rem_addr: Mapped remote address of the connecting peer
+ * @remote_addr: To store the remote address of the connecting peer
+ * @nl_client: The index of the netlink client
+ *
+ * The remote address info is retrieved and provided to the client in
+ * the remote_addr. After that it is removed from the hash table
+ */
int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
struct sockaddr_storage *mapped_rem_addr,
struct sockaddr_storage *remote_addr,
u32 flags;
};
-/**
- * iwpm_init - Allocate resources for the iwarp port mapper
- *
- * Should be called when network interface goes up.
- */
int iwpm_init(u8);
-
-/**
- * iwpm_exit - Deallocate resources for the iwarp port mapper
- *
- * Should be called when network interface goes down.
- */
int iwpm_exit(u8);
-
-/**
- * iwpm_valid_pid - Check if the userspace iwarp port mapper pid is valid
- *
- * Returns true if the pid is greater than zero, otherwise returns false
- */
int iwpm_valid_pid(void);
-
-/**
- * iwpm_register_pid - Send a netlink query to userspace
- * to get the iwarp port mapper pid
- * @pm_msg: Contains driver info to send to the userspace port mapper
- * @nl_client: The index of the netlink client
- */
int iwpm_register_pid(struct iwpm_dev_data *pm_msg, u8 nl_client);
-
-/**
- * iwpm_add_mapping - Send a netlink add mapping request to
- * the userspace port mapper
- * @pm_msg: Contains the local ip/tcp address info to send
- * @nl_client: The index of the netlink client
- *
- * If the request is successful, the pm_msg stores
- * the port mapper response (mapped address info)
- */
int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client);
-
-/**
- * iwpm_add_and_query_mapping - Send a netlink add and query mapping request
- * to the userspace port mapper
- * @pm_msg: Contains the local and remote ip/tcp address info to send
- * @nl_client: The index of the netlink client
- *
- * If the request is successful, the pm_msg stores the
- * port mapper response (mapped local and remote address info)
- */
int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client);
-
-/**
- * iwpm_remove_mapping - Send a netlink remove mapping request
- * to the userspace port mapper
- *
- * @local_addr: Local ip/tcp address to remove
- * @nl_client: The index of the netlink client
- */
int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client);
-
-/**
- * iwpm_register_pid_cb - Process the port mapper response to
- * iwpm_register_pid query
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- *
- * If successful, the function receives the userspace port mapper pid
- * which is used in future communication with the port mapper
- */
int iwpm_register_pid_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_add_mapping_cb - Process the port mapper response to
- * iwpm_add_mapping request
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- */
int iwpm_add_mapping_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_add_and_query_mapping_cb - Process the port mapper response to
- * iwpm_add_and_query_mapping request
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- */
int iwpm_add_and_query_mapping_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_remote_info_cb - Process remote connecting peer address info, which
- * the port mapper has received from the connecting peer
- *
- * @cb: Contains the received message (payload and netlink header)
- *
- * Stores the IPv4/IPv6 address info in a hash table
- */
int iwpm_remote_info_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_mapping_error_cb - Process port mapper notification for error
- *
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- */
int iwpm_mapping_error_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_mapping_info_cb - Process a notification that the userspace
- * port mapper daemon is started
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- *
- * Using the received port mapper pid, send all the local mapping
- * info records to the userspace port mapper
- */
int iwpm_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_ack_mapping_info_cb - Process the port mapper ack for
- * the provided local mapping info records
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- */
int iwpm_ack_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
-
-/**
- * iwpm_get_remote_info - Get the remote connecting peer address info
- *
- * @mapped_loc_addr: Mapped local address of the listening peer
- * @mapped_rem_addr: Mapped remote address of the connecting peer
- * @remote_addr: To store the remote address of the connecting peer
- * @nl_client: The index of the netlink client
- *
- * The remote address info is retrieved and provided to the client in
- * the remote_addr. After that it is removed from the hash table
- */
int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
struct sockaddr_storage *mapped_rem_addr,
struct sockaddr_storage *remote_addr, u8 nl_client);
-
-/**
- * iwpm_create_mapinfo - Store local and mapped IPv4/IPv6 address
- * info in a hash table
- * @local_addr: Local ip/tcp address
- * @mapped_addr: Mapped local ip/tcp address
- * @nl_client: The index of the netlink client
- * @map_flags: IWPM mapping flags
- */
int iwpm_create_mapinfo(struct sockaddr_storage *local_addr,
struct sockaddr_storage *mapped_addr, u8 nl_client,
u32 map_flags);
-
-/**
- * iwpm_remove_mapinfo - Remove local and mapped IPv4/IPv6 address
- * info from the hash table
- * @local_addr: Local ip/tcp address
- * @mapped_addr: Mapped local ip/tcp address
- *
- * Returns err code if mapping info is not found in the hash table,
- * otherwise returns 0
- */
int iwpm_remove_mapinfo(struct sockaddr_storage *local_addr,
struct sockaddr_storage *mapped_addr);
-/**
- * iwpm_hello_cb - Process a hello message from iwpmd
- *
- * @skb:
- * @cb: Contains the received message (payload and netlink header)
- *
- * Using the received port mapper pid, send the kernel's abi_version
- * after adjusting it to support the iwpmd version.
- */
int iwpm_hello_cb(struct sk_buff *skb, struct netlink_callback *cb);
#endif /* _IW_PORTMAP_H */
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