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https://github.com/versity/scoutfs.git
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1ea75a9d54
Add some quick functions that let us convert between our persistent packed inet addr struct and native sockaddr_in structs. Signed-off-by: Zach Brown <zab@versity.com>
101 lines
3.7 KiB
C
101 lines
3.7 KiB
C
#ifndef _SCOUTFS_NET_H_
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#define _SCOUTFS_NET_H_
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#include <linux/in.h>
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#include "endian_swap.h"
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#define SIN_FMT "%pIS:%u"
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#define SIN_ARG(sin) sin, be16_to_cpu((sin)->sin_port)
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static inline void scoutfs_addr_to_sin(struct sockaddr_in *sin,
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struct scoutfs_inet_addr *addr)
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{
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sin->sin_family = AF_INET;
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sin->sin_addr.s_addr = cpu_to_be32(le32_to_cpu(addr->addr));
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sin->sin_port = cpu_to_be16(le16_to_cpu(addr->port));
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}
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static inline void scoutfs_addr_from_sin(struct scoutfs_inet_addr *addr,
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struct sockaddr_in *sin)
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{
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addr->addr = be32_to_le32(sin->sin_addr.s_addr);
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addr->port = be16_to_le16(sin->sin_port);
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}
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struct scoutfs_net_connection;
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/* These are called in their own blocking context */
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typedef int (*scoutfs_net_request_t)(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u8 cmd, u64 id, void *arg, u16 arg_len);
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/* These are called in their own blocking context */
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typedef int (*scoutfs_net_response_t)(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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void *resp, unsigned int resp_len,
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int error, void *data);
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typedef void (*scoutfs_net_notify_t)(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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void *info, u64 node_id);
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struct scoutfs_net_connection *
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scoutfs_net_alloc_conn(struct super_block *sb,
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scoutfs_net_notify_t notify_up,
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scoutfs_net_notify_t notify_down, size_t info_size,
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scoutfs_net_request_t *req_funcs, char *name_suffix);
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u64 scoutfs_net_client_node_id(struct scoutfs_net_connection *conn);
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int scoutfs_net_connect(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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struct sockaddr_in *sin, unsigned long timeout_ms);
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int scoutfs_net_bind(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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struct sockaddr_in *sin);
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void scoutfs_net_listen(struct super_block *sb,
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struct scoutfs_net_connection *conn);
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int scoutfs_net_submit_request(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u8 cmd, void *arg, u16 arg_len,
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scoutfs_net_response_t resp_func,
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void *resp_data, u64 *id_ret);
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int scoutfs_net_submit_request_node(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u64 node_id, u8 cmd,
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void *arg, u16 arg_len,
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scoutfs_net_response_t resp_func,
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void *resp_data, u64 *id_ret);
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void scoutfs_net_cancel_request(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u8 cmd, u64 id);
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int scoutfs_net_sync_request(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u8 cmd, void *arg, unsigned arg_len,
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void *resp, size_t resp_len);
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int scoutfs_net_response(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u8 cmd, u64 id, int error, void *resp, u16 resp_len);
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int scoutfs_net_response_node(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u64 node_id, u8 cmd, u64 id, int error,
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void *resp, u16 resp_len);
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void scoutfs_net_shutdown(struct super_block *sb,
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struct scoutfs_net_connection *conn);
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void scoutfs_net_free_conn(struct super_block *sb,
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struct scoutfs_net_connection *conn);
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void scoutfs_net_client_greeting(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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bool new_server);
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void scoutfs_net_server_greeting(struct super_block *sb,
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struct scoutfs_net_connection *conn,
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u64 node_id, u64 greeting_id,
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bool sent_node_id, bool first_contact,
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bool farewell);
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void scoutfs_net_farewell(struct super_block *sb,
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struct scoutfs_net_connection *conn);
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int scoutfs_net_setup(struct super_block *sb);
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void scoutfs_net_destroy(struct super_block *sb);
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#endif
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