mirror of
https://github.com/openvswitch/ovs
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259e0b1ad1
The only uses of 'af_inet_sock', in both drivers, were ioctls, so it seemed like a good abstraction to write a function that just does such an ioctl, and to factor out shared code into socket-util. Signed-off-by: Ben Pfaff <blp@nicira.com> CC: Ed Maste <emaste@freebsd.org>
107 lines
3.9 KiB
C
107 lines
3.9 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SOCKET_UTIL_H
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#define SOCKET_UTIL_H 1
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <netinet/in.h>
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#include <stdbool.h>
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#include "openvswitch/types.h"
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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int set_nonblocking(int fd);
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void xset_nonblocking(int fd);
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int set_dscp(int fd, uint8_t dscp);
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int get_max_fds(void);
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int lookup_ip(const char *host_name, struct in_addr *address);
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int lookup_ipv6(const char *host_name, struct in6_addr *address);
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int lookup_hostname(const char *host_name, struct in_addr *);
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int get_socket_rcvbuf(int sock);
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int check_connection_completion(int fd);
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int drain_rcvbuf(int fd);
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void drain_fd(int fd, size_t n_packets);
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int make_unix_socket(int style, bool nonblock,
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const char *bind_path, const char *connect_path);
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int get_unix_name_len(socklen_t sun_len);
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ovs_be32 guess_netmask(ovs_be32 ip);
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int get_null_fd(void);
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bool inet_parse_active(const char *target, uint16_t default_port,
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struct sockaddr_in *sinp);
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int inet_open_active(int style, const char *target, uint16_t default_port,
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struct sockaddr_in *sinp, int *fdp, uint8_t dscp);
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bool inet_parse_passive(const char *target, int default_port,
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struct sockaddr_in *sinp);
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int inet_open_passive(int style, const char *target, int default_port,
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struct sockaddr_in *sinp, uint8_t dscp);
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int read_fully(int fd, void *, size_t, size_t *bytes_read);
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int write_fully(int fd, const void *, size_t, size_t *bytes_written);
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int fsync_parent_dir(const char *file_name);
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int get_mtime(const char *file_name, struct timespec *mtime);
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void xpipe(int fds[2]);
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void xpipe_nonblocking(int fds[2]);
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char *describe_fd(int fd);
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/* Default value of dscp bits for connection between controller and manager.
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* Value of IPTOS_PREC_INTERNETCONTROL = 0xc0 which is defined
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* in <netinet/ip.h> is used. */
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#define DSCP_DEFAULT (IPTOS_PREC_INTERNETCONTROL >> 2)
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/* Maximum number of fds that we support sending or receiving at one time
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* across a Unix domain socket. */
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#define SOUTIL_MAX_FDS 8
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/* Iovecs. */
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size_t iovec_len(const struct iovec *iovs, size_t n_iovs);
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bool iovec_is_empty(const struct iovec *iovs, size_t n_iovs);
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/* Functions particularly useful for Unix domain sockets. */
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void xsocketpair(int domain, int type, int protocol, int fds[2]);
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int send_iovec_and_fds(int sock,
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const struct iovec *iovs, size_t n_iovs,
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const int fds[], size_t n_fds);
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int send_iovec_and_fds_fully(int sock,
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const struct iovec *iovs, size_t n_iovs,
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const int fds[], size_t n_fds,
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size_t skip_bytes, size_t *bytes_sent);
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int send_iovec_and_fds_fully_block(int sock,
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const struct iovec *iovs, size_t n_iovs,
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const int fds[], size_t n_fds);
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int recv_data_and_fds(int sock,
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void *data, size_t size,
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int fds[SOUTIL_MAX_FDS], size_t *n_fdsp);
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/* Helpers for calling ioctl() on an AF_INET socket. */
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struct ifreq;
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int af_inet_ioctl(unsigned long int command, const void *arg);
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int af_inet_ifreq_ioctl(const char *name, struct ifreq *,
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unsigned long int cmd, const char *cmd_name);
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#endif /* socket-util.h */
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