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author | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
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committer | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
commit | 8a365179eafdf3aea98e60ab9f5882b200d4c759 (patch) | |
tree | 4f38d6d4cd80bd0b6e22e2bb534c3f117ce44e56 /nuttx/net/setsockopt.c | |
download | px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.gz px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.bz2 px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.zip |
Fresh import of the PX4 firmware sources.
Diffstat (limited to 'nuttx/net/setsockopt.c')
-rw-r--r-- | nuttx/net/setsockopt.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/nuttx/net/setsockopt.c b/nuttx/net/setsockopt.c new file mode 100644 index 000000000..ad52ff53d --- /dev/null +++ b/nuttx/net/setsockopt.c @@ -0,0 +1,304 @@ +/**************************************************************************** + * net/setsockopt.c + * + * Copyright (C) 2007, 2008, 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#if defined(CONFIG_NET) && defined(CONFIG_NET_SOCKOPTS) + +#include <sys/types.h> +#include <sys/socket.h> +#include <errno.h> +#include <arch/irq.h> + +#include "net_internal.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: psock_setsockopt + * + * Description: + * psock_setsockopt() sets the option specified by the 'option' argument, + * at the protocol level specified by the 'level' argument, to the value + * pointed to by the 'value' argument for the socket on the 'psock' argument. + * + * The 'level' argument specifies the protocol level of the option. To set + * options at the socket level, specify the level argument as SOL_SOCKET. + * + * See <sys/socket.h> a complete list of values for the 'option' argument. + * + * Parameters: + * psock Socket structure of socket to operate on + * level Protocol level to set the option + * option identifies the option to set + * value Points to the argument value + * value_len The length of the argument value + * + * Returned Value: + * 0 on success; -1 on failure + * + * EDOM + * The send and receive timeout values are too big to fit into the + * timeout fields in the socket structure. + * EINVAL + * The specified option is invalid at the specified socket 'level' or the + * socket has been shut down. + * EISCONN + * The socket is already connected, and a specified option cannot be set + * while the socket is connected. + * ENOPROTOOPT + * The 'option' is not supported by the protocol. + * ENOTSOCK + * The 'sockfd' argument does not refer to a socket. + * ENOMEM + * There was insufficient memory available for the operation to complete. + * ENOBUFS + * Insufficient resources are available in the system to complete the + * call. + * + * Assumptions: + * + ****************************************************************************/ + +int psock_setsockopt(FAR struct socket *psock, int level, int option, + FAR const void *value, socklen_t value_len) +{ + uip_lock_t flags; + int err; + + /* Verify that the socket option if valid (but might not be supported ) */ + + if (!_SO_SETVALID(option) || !value) + { + err = EINVAL; + goto errout; + } + + /* Process the option */ + switch (option) + { + /* The following options take a point to an integer boolean value. + * We will blindly set the bit here although the implementation + * is outside of the scope of setsockopt. + */ + + case SO_DEBUG: /* Enables recording of debugging information */ + case SO_BROADCAST: /* Permits sending of broadcast messages */ + case SO_REUSEADDR: /* Allow reuse of local addresses */ + case SO_KEEPALIVE: /* Keeps connections active by enabling the + * periodic transmission */ + case SO_OOBINLINE: /* Leaves received out-of-band data inline */ + case SO_DONTROUTE: /* Requests outgoing messages bypass standard routing */ + { + int setting; + + /* Verify that option is the size of an 'int'. Should also check + * that 'value' is properly aligned for an 'int' + */ + + if (value_len != sizeof(int)) + { + err = EINVAL; + goto errout; + } + + /* Get the value. Is the option being set or cleared? */ + + setting = *(int*)value; + + /* Disable interrupts so that there is no conflict with interrupt + * level access to options. + */ + + flags = uip_lock(); + + /* Set or clear the option bit */ + + if (setting) + { + _SO_SETOPT(psock->s_options, option); + } + else + { + _SO_CLROPT(psock->s_options, option); + } + uip_unlock(flags); + } + break; + + /* The following are valid only if the OS CLOCK feature is enabled */ + + case SO_RCVTIMEO: + case SO_SNDTIMEO: +#ifndef CONFIG_DISABLE_CLOCK + { + socktimeo_t timeo; + + /* Verify that option is the size of an 'struct timeval'. */ + + if (value_len != sizeof(struct timeval)) + { + err = EINVAL; + goto errout; + } + + /* Get the timeout value */ + + timeo = net_timeval2dsec((struct timeval *)value); + + /* Save the timeout value */ + + if (option == SO_RCVTIMEO) + { + psock->s_rcvtimeo = timeo; + } + else + { + psock->s_sndtimeo = timeo; + } + + /* Set/clear the corresponding enable/disable bit */ + + if (timeo) + { + _SO_CLROPT(psock->s_options, option); + } + else + { + _SO_SETOPT(psock->s_options, option); + } + } + break; +#endif + + /* The following are not yet implemented */ + + case SO_LINGER: + case SO_SNDBUF: /* Sets send buffer size */ + case SO_RCVBUF: /* Sets receive buffer size */ + case SO_RCVLOWAT: /* Sets the minimum number of bytes to input */ + case SO_SNDLOWAT: /* Sets the minimum number of bytes to output */ + + /* There options are only valid when used with getopt */ + + case SO_ACCEPTCONN: /* Reports whether socket listening is enabled */ + case SO_ERROR: /* Reports and clears error status. */ + case SO_TYPE: /* Reports the socket type */ + + default: + err = ENOPROTOOPT; + goto errout; + } + return OK; + +errout: + set_errno(err); + return ERROR; +} + +/**************************************************************************** + * Function: setsockopt + * + * Description: + * setsockopt() sets the option specified by the 'option' argument, + * at the protocol level specified by the 'level' argument, to the value + * pointed to by the 'value' argument for the socket associated with the + * file descriptor specified by the 'sockfd' argument. + * + * The 'level' argument specifies the protocol level of the option. To set + * options at the socket level, specify the level argument as SOL_SOCKET. + * + * See <sys/socket.h> a complete list of values for the 'option' argument. + * + * Parameters: + * sockfd Socket descriptor of socket + * level Protocol level to set the option + * option identifies the option to set + * value Points to the argument value + * value_len The length of the argument value + * + * Returned Value: + * 0 on success; -1 on failure + * + * EBADF + * The 'sockfd' argument is not a valid socket descriptor. + * EDOM + * The send and receive timeout values are too big to fit into the + * timeout fields in the socket structure. + * EINVAL + * The specified option is invalid at the specified socket 'level' or the + * socket has been shut down. + * EISCONN + * The socket is already connected, and a specified option cannot be set + * while the socket is connected. + * ENOPROTOOPT + * The 'option' is not supported by the protocol. + * ENOTSOCK + * The 'sockfd' argument does not refer to a socket. + * ENOMEM + * There was insufficient memory available for the operation to complete. + * ENOBUFS + * Insufficient resources are available in the system to complete the + * call. + * + * Assumptions: + * + ****************************************************************************/ + +int setsockopt(int sockfd, int level, int option, const void *value, socklen_t value_len) +{ + FAR struct socket *psock; + + /* Get the underlying socket structure */ + /* Verify that the sockfd corresponds to valid, allocated socket */ + + psock = sockfd_socket(sockfd); + if (!psock || psock->s_crefs <= 0) + { + set_errno(EBADF); + return ERROR; + } + + /* Then let psock_setockopt() do all of the work */ + + return psock_setsockopt(psock, level, option, value, value_len); +} + +#endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS */ |