Header file describing userspace helper data, generic message numbers and
exported functions.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/netlink.h | 59 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/kernel/power/netlink.h b/kernel/power/netlink.h
new file mode 100644
index 0000000..e55533a
--- /dev/null
+++ b/kernel/power/netlink.h
@@ -0,0 +1,59 @@
+/*
+ * kernel/power/netlink.h
+ *
+ * Copyright (C) 2004-2006 Nigel Cunningham <[email protected]>
+ *
+ * This file is released under the GPLv2.
+ *
+ * Declarations for functions for communicating with a userspace helper
+ * via netlink.
+ */
+
+#include <linux/netlink.h>
+#include <net/sock.h>
+
+#define NETLINK_MSG_BASE 0x10
+
+#define NETLINK_MSG_READY 0x10
+#define NETLINK_MSG_NOFREEZE_ME 0x16
+#define NETLINK_MSG_GET_DEBUGGING 0x19
+#define NETLINK_MSG_CLEANUP 0x24
+#define NETLINK_MSG_NOFREEZE_ACK 0x27
+#define NETLINK_MSG_IS_DEBUGGING 0x28
+
+struct user_helper_data {
+ int (*rcv_msg) (struct sk_buff *skb, struct nlmsghdr *nlh);
+ void (* not_ready) (void);
+ struct sock *nl;
+ u32 sock_seq;
+ pid_t pid;
+ char *comm;
+ char program[256];
+ int pool_level;
+ int pool_limit;
+ struct sk_buff *emerg_skbs;
+ int skb_size;
+ int netlink_id;
+ char *name;
+ struct user_helper_data *next;
+ struct completion wait_for_process;
+ int interface_version;
+ int must_init;
+};
+
+
+#ifdef CONFIG_NET
+int suspend_netlink_setup(struct user_helper_data *uhd);
+void suspend_netlink_close(struct user_helper_data *uhd);
+void suspend_send_netlink_message(struct user_helper_data *uhd,
+ int type, void* params, size_t len);
+#else
+static inline int suspend_netlink_setup(struct user_helper_data *uhd)
+{
+ return 0;
+}
+
+static inline void suspend_netlink_close(struct user_helper_data *uhd) { };
+static inline void suspend_send_netlink_message(struct user_helper_data *uhd,
+ int type, void* params, size_t len) { };
+#endif
--
Nigel Cunningham nigel at suspend2 dot net
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