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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-04 18:54:04 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-04 18:54:04 +0000 |
commit | 08a0eae6371ad7d6af7c0d941381fa1e11370a86 (patch) | |
tree | 7a3a8ae8e2b29e3832a17a7def5b0531383172bb /apps/netutils/uiplib/uip_getifflag.c | |
parent | 813efa266bb67269669e532b5ce6f00ee2097948 (diff) | |
download | nuttx-08a0eae6371ad7d6af7c0d941381fa1e11370a86.tar.gz nuttx-08a0eae6371ad7d6af7c0d941381fa1e11370a86.tar.bz2 nuttx-08a0eae6371ad7d6af7c0d941381fa1e11370a86.zip |
Add interfaces flags, extend ifconfig, add ifup and ifdown commands (Darcy Gong
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5308 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/netutils/uiplib/uip_getifflag.c')
-rw-r--r-- | apps/netutils/uiplib/uip_getifflag.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/apps/netutils/uiplib/uip_getifflag.c b/apps/netutils/uiplib/uip_getifflag.c new file mode 100644 index 000000000..8574d331a --- /dev/null +++ b/apps/netutils/uiplib/uip_getifflag.c @@ -0,0 +1,118 @@ +/**************************************************************************** + * netutils/uiplib/uip_getifflag.c + * + * Copyright (C) 2007-2009, 2011 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) && CONFIG_NSOCKET_DESCRIPTORS > 0 + +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <stdint.h> +#include <stdbool.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> + +#include <netinet/in.h> +#include <net/if.h> + +#include <apps/netutils/uiplib.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uip_getifstatus + * + * Description: + * Get the network driver ifup/ifdown status + * + * Parameters: + * ifname The name of the interface to use + * status interface flag ifup or ifdown status + * + * Return: + * 0 on sucess; -1 on failure + * + ****************************************************************************/ + +int uip_getifstatus(const char *ifname, bool *status) +{ + int ret = ERROR; + if (ifname) + { + /* Get a socket (only so that we get access to the INET subsystem) */ + + int sockfd = socket(PF_INET, UIPLIB_SOCK_IOCTL, 0); + if (sockfd >= 0) + { + struct ifreq req; + memset (&req, 0, sizeof(struct ifreq)); + + /* Put the driver name into the request */ + + strncpy(req.ifr_name, ifname, IFNAMSIZ); + + /* Perform the ioctl to ifup or ifdown status */ + + ret = ioctl(sockfd, SIOCGIFFLAGS, (unsigned long)&req); + if (!ret) + { + /* Return the ifup or ifdown status */ + + if ((req.ifr_flags & IF_FLAG_IFUP) == (req.ifr_flags & IF_FLAG_IFDOWN)) + { + ret = ERROR; + } + else if(req.ifr_flags & IF_FLAG_IFUP) + { + *status = true; + } + else + { + *status = false; + } + } + close(sockfd); + } + } + return ret; +} + +#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */ |