Index: head/lib/libifconfig/libifconfig.c =================================================================== --- head/lib/libifconfig/libifconfig.c (revision 305394) +++ head/lib/libifconfig/libifconfig.c (revision 305395) @@ -1,397 +1,421 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * 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. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + * + * $FreeBSD$ */ #include #include #include #include #include #include #include #include #include #include "libifconfig.h" #include "libifconfig_internal.h" ifconfig_handle_t * ifconfig_open(void) { struct ifconfig_handle *h; - h = calloc(1, sizeof(struct ifconfig_handle)); - + h = calloc(1, sizeof(*h)); for (int i = 0; i <= AF_MAX; i++) { h->sockets[i] = -1; } - return (h); } - void ifconfig_close(ifconfig_handle_t *h) { + for (int i = 0; i <= AF_MAX; i++) { if (h->sockets[i] != -1) { (void)close(h->sockets[i]); } } free(h); } - ifconfig_errtype ifconfig_err_errtype(ifconfig_handle_t *h) { + return (h->error.errtype); } - int ifconfig_err_errno(ifconfig_handle_t *h) { + return (h->error.errcode); } - unsigned long ifconfig_err_ioctlreq(ifconfig_handle_t *h) { + return (h->error.ioctl_request); } - int -ifconfig_get_description(ifconfig_handle_t *h, const char *name, char **description) +ifconfig_get_description(ifconfig_handle_t *h, const char *name, + char **description) { struct ifreq ifr; - char *descr = NULL; - size_t descrlen = 64; + char *descr; + size_t descrlen; - memset(&ifr, 0, sizeof(struct ifreq)); + descr = NULL; + descrlen = 64; + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); + for (;;) { if ((descr = reallocf(descr, descrlen)) == NULL) { h->error.errtype = OTHER; h->error.errcode = ENOMEM; return (-1); } ifr.ifr_buffer.buffer = descr; ifr.ifr_buffer.length = descrlen; - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFDESCR, - &ifr) != 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFDESCR, &ifr) != 0) { return (-1); } if (ifr.ifr_buffer.buffer == descr) { if (strlen(descr) > 0) { *description = strdup(descr); free(descr); return (0); } } else if (ifr.ifr_buffer.length > descrlen) { descrlen = ifr.ifr_buffer.length; continue; } break; } free(descr); h->error.errtype = OTHER; h->error.errcode = 0; return (-1); } - int ifconfig_set_description(ifconfig_handle_t *h, const char *name, const char *newdescription) { struct ifreq ifr; int desclen; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); desclen = strlen(newdescription); /* * Unset description if the new description is 0 characters long. * TODO: Decide whether this should be an error condition instead. */ if (desclen == 0) { return (ifconfig_unset_description(h, name)); } (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - ifr.ifr_buffer.length = desclen + 1; ifr.ifr_buffer.buffer = strdup(newdescription); + if (ifr.ifr_buffer.buffer == NULL) { h->error.errtype = OTHER; h->error.errcode = ENOMEM; return (-1); } - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, &ifr) != 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, + &ifr) != 0) { free(ifr.ifr_buffer.buffer); return (-1); } + free(ifr.ifr_buffer.buffer); return (0); } - -int ifconfig_unset_description(ifconfig_handle_t *h, const char *name) +int +ifconfig_unset_description(ifconfig_handle_t *h, const char *name) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_buffer.length = 0; ifr.ifr_buffer.buffer = NULL; - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, &ifr) < 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, + &ifr) < 0) { return (-1); } return (0); } - -int ifconfig_set_name(ifconfig_handle_t *h, const char *name, const char *newname) +int +ifconfig_set_name(ifconfig_handle_t *h, const char *name, const char *newname) { struct ifreq ifr; char *tmpname; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); tmpname = strdup(newname); if (tmpname == NULL) { h->error.errtype = OTHER; h->error.errcode = ENOMEM; return (-1); } (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_data = tmpname; - - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFNAME, &ifr) != 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFNAME, + &ifr) != 0) { free(tmpname); return (-1); } + free(tmpname); return (0); } - -int ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu) +int +ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_mtu = mtu; - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMTU, &ifr) < 0) { + + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMTU, + &ifr) < 0) { return (-1); } + return (0); } - -int ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu) +int +ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMTU, &ifr) == -1) { + + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMTU, + &ifr) == -1) { return (-1); } + *mtu = ifr.ifr_mtu; return (0); } - -int ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int mtu) +int +ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int mtu) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); ifr.ifr_mtu = mtu; - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMETRIC, &ifr) < 0) { + + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMETRIC, + &ifr) < 0) { return (-1); } + return (0); } - -int ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric) +int +ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMETRIC, &ifr) == -1) { + + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMETRIC, + &ifr) == -1) { return (-1); } + *metric = ifr.ifr_metric; return (0); } - -int ifconfig_set_capability(ifconfig_handle_t *h, const char *name, +int +ifconfig_set_capability(ifconfig_handle_t *h, const char *name, const int capability) { struct ifreq ifr; struct ifconfig_capabilities ifcap; - int flags; - int value; + int flags, value; - memset(&ifr, 0, sizeof(struct ifreq)); - if (ifconfig_get_capability(h, name, &ifcap) != 0) { + memset(&ifr, 0, sizeof(ifr)); + + if (ifconfig_get_capability(h, name, + &ifcap) != 0) { return (-1); } value = capability; flags = ifcap.curcap; if (value < 0) { value = -value; flags &= ~value; } else { flags |= value; } flags &= ifcap.reqcap; (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); /* * TODO: Verify that it's safe to not have ifr.ifr_curcap * set for this request. */ ifr.ifr_reqcap = flags; - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFCAP, &ifr) < 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFCAP, + &ifr) < 0) { return (-1); } return (0); } - -int ifconfig_get_capability(ifconfig_handle_t *h, const char *name, +int +ifconfig_get_capability(ifconfig_handle_t *h, const char *name, struct ifconfig_capabilities *capability) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFCAP, &ifr) < 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFCAP, + &ifr) < 0) { return (-1); } capability->curcap = ifr.ifr_curcap; capability->reqcap = ifr.ifr_reqcap; return (0); } - -int ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name) +int +ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFDESTROY, &ifr) < 0) { + if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFDESTROY, + &ifr) < 0) { return (-1); } return (0); } - -int ifconfig_create_interface(ifconfig_handle_t *h, const char *name, char **ifname) +int +ifconfig_create_interface(ifconfig_handle_t *h, const char *name, char **ifname) { struct ifreq ifr; - memset(&ifr, 0, sizeof(struct ifreq)); + memset(&ifr, 0, sizeof(ifr)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); /* * TODO: * Insert special snowflake handling here. See GitHub issue #12 for details. * In the meantime, hard-nosupport interfaces that need special handling. */ - if ((strncmp(name, "wlan", strlen("wlan")) == 0) || - (strncmp(name, "vlan", strlen("vlan")) == 0) || - (strncmp(name, "vxlan", strlen("vxlan")) == 0)) { + if ((strncmp(name, "wlan", + strlen("wlan")) == 0) || + (strncmp(name, "vlan", + strlen("vlan")) == 0) || + (strncmp(name, "vxlan", + strlen("vxlan")) == 0)) { h->error.errtype = OTHER; h->error.errcode = ENOSYS; return (-1); } /* No special handling for this interface type. */ - if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFCREATE2, &ifr) < 0) { return (-1); } + *ifname = strdup(ifr.ifr_name); return (0); } Index: head/lib/libifconfig/libifconfig.h =================================================================== --- head/lib/libifconfig/libifconfig.h (revision 305394) +++ head/lib/libifconfig/libifconfig.h (revision 305395) @@ -1,111 +1,105 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #pragma once typedef enum { OTHER, IOCTL, SOCKET } ifconfig_errtype; /* * Opaque definition so calling application can just pass a * pointer to it for library use. */ struct ifconfig_handle; typedef struct ifconfig_handle ifconfig_handle_t; struct ifconfig_capabilities { /** Current capabilities (ifconfig prints this as 'options')*/ int curcap; /** Requested capabilities (ifconfig prints this as 'capabilities')*/ int reqcap; }; - /** Retrieves a new state object for use in other API calls. * Example usage: *{@code * // Create state object * ifconfig_handle_t *lifh = ifconfig_open(); * * // Do stuff with it * * // Dispose of the state object * ifconfig_close(lifh); * lifh = NULL; *} */ ifconfig_handle_t *ifconfig_open(void); /** Frees resources held in the provided state object. * @param h The state object to close. * @see #ifconfig_open(void) */ void ifconfig_close(ifconfig_handle_t *h); /** Identifies what kind of error occured. */ ifconfig_errtype ifconfig_err_errtype(ifconfig_handle_t *h); /** Retrieves the errno associated with the error, if any. */ int ifconfig_err_errno(ifconfig_handle_t *h); /** If error type was IOCTL, this identifies which request failed. */ unsigned long ifconfig_err_ioctlreq(ifconfig_handle_t *h); - int ifconfig_get_description(ifconfig_handle_t *h, const char *name, char **description); int ifconfig_set_description(ifconfig_handle_t *h, const char *name, const char *newdescription); int ifconfig_unset_description(ifconfig_handle_t *h, const char *name); -int ifconfig_set_name(ifconfig_handle_t *h, const char *name, const char *newname); +int ifconfig_set_name(ifconfig_handle_t *h, const char *name, + const char *newname); int ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu); int ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu); - -int ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int metric); +int ifconfig_set_metric(ifconfig_handle_t *h, const char *name, + const int metric); int ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric); - int ifconfig_set_capability(ifconfig_handle_t *h, const char *name, const int capability); int ifconfig_get_capability(ifconfig_handle_t *h, const char *name, struct ifconfig_capabilities *capability); /** Destroy a virtual interface * @param name Interface to destroy */ int ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name); /** Creates a (virtual) interface * @param name Name of interface to create. Example: bridge or bridge42 * @param name ifname Is set to actual name of created interface */ int ifconfig_create_interface(ifconfig_handle_t *h, const char *name, char **ifname); Index: head/lib/libifconfig/libifconfig_internal.c =================================================================== --- head/lib/libifconfig/libifconfig_internal.c (revision 305394) +++ head/lib/libifconfig/libifconfig_internal.c (revision 305395) @@ -1,100 +1,98 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ +#include #include #include #include #include -#include #include - #include "libifconfig.h" // Needed for ifconfig_errstate #include "libifconfig_internal.h" + int ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request, int rcode) { + if (rcode != 0) { h->error.errtype = IOCTL; h->error.ioctl_request = request; h->error.errcode = errno; } + return (rcode); } - int ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily, unsigned long request, struct ifreq *ifr) { int s; if (ifconfig_socket(h, addressfamily, &s) != 0) { return (-1); } int rcode = ioctl(s, request, ifr); return (ifconfig_ioctlwrap_ret(h, request, rcode)); } - /* * Function to get socket for the specified address family. * If the socket doesn't already exist, attempt to create it. */ -int ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s) +int +ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s) { + if (addressfamily > AF_MAX) { h->error.errtype = SOCKET; h->error.errcode = EINVAL; return (-1); } if (h->sockets[addressfamily] != -1) { *s = h->sockets[addressfamily]; return (0); } /* We don't have a socket of that type available. Create one. */ h->sockets[addressfamily] = socket(addressfamily, SOCK_DGRAM, 0); if (h->sockets[addressfamily] == -1) { h->error.errtype = SOCKET; h->error.errcode = errno; return (-1); } *s = h->sockets[addressfamily]; return (0); } Index: head/lib/libifconfig/libifconfig_internal.h =================================================================== --- head/lib/libifconfig/libifconfig_internal.h (revision 305394) +++ head/lib/libifconfig/libifconfig_internal.h (revision 305395) @@ -1,87 +1,84 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #pragma once #include "libifconfig.h" struct errstate { /** * Type of error. */ ifconfig_errtype errtype; /** * The error occured in this ioctl() request. * Populated if errtype = IOCTL */ unsigned long ioctl_request; /** * The value of the global errno variable when the error occured. */ int errcode; }; struct ifconfig_handle { struct errstate error; int sockets[AF_MAX + 1]; }; /** * Retrieves socket for address family from * cache, or creates it if it doesn't already exist. * @param addressfamily The address family of the socket to retrieve * @param s The retrieved socket. * @return 0 on success, -1 on failure. * {@example * This example shows how to retrieve a socket from the cache. * {@code * static void myfunc() \{ * int s; * if (ifconfig_socket(AF_LOCAL, &s) != 0) \{ * // Handle error state here * \} * // user code here * \} * } * } */ int ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s); /** Function used by other wrapper functions to populate _errstate when appropriate.*/ -int ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request, int rcode); +int ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request, + int rcode); /** Function to wrap ioctl() and automatically populate ifconfig_errstate when appropriate.*/ int ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily, unsigned long request, struct ifreq *ifr); Index: head/share/examples/libifconfig/ifcreate.c =================================================================== --- head/share/examples/libifconfig/ifcreate.c (revision 305394) +++ head/share/examples/libifconfig/ifcreate.c (revision 305395) @@ -1,93 +1,90 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { + char *ifname, *ifactualname; + if (argc != 2) { errx(EINVAL, "Invalid number of arguments." " Only one argument is accepted, and it should be the name" " of the interface to be created."); } - char *ifname, *ifactualname; - /* We have a static number of arguments. Therefore we can do it simple. */ ifname = strdup(argv[1]); printf("Requested interface name: %s\n", ifname); ifconfig_handle_t *lifh = ifconfig_open(); if (ifconfig_create_interface(lifh, ifname, &ifactualname) == 0) { printf("Successfully created interface '%s'\n", ifactualname); ifconfig_close(lifh); lifh = NULL; free(ifname); free(ifactualname); return (0); - } else { - switch (ifconfig_err_errtype(lifh)) { - case SOCKET: - warnx("couldn't create socket. This shouldn't happen.\n"); - break; - case IOCTL: - if (ifconfig_err_ioctlreq(lifh) == SIOCIFCREATE2) { - warnx( - "Failed to create interface (SIOCIFCREATE2)\n"); - } - break; - default: + } + + switch (ifconfig_err_errtype(lifh)) { + case SOCKET: + warnx("couldn't create socket. This shouldn't happen.\n"); + break; + case IOCTL: + if (ifconfig_err_ioctlreq(lifh) == SIOCIFCREATE2) { warnx( - "This is a thorough example accommodating for temporary" - " 'not implemented yet' errors. That's likely what happened" - " now. If not, your guess is as good as mine. ;)" - " Error code: %d\n", ifconfig_err_errno( - lifh)); - break; + "Failed to create interface (SIOCIFCREATE2)\n"); } - - ifconfig_close(lifh); - lifh = NULL; - free(ifname); - free(ifactualname); - return (-1); + break; + default: + warnx( + "This is a thorough example accommodating for temporary" + " 'not implemented yet' errors. That's likely what happened" + " now. If not, your guess is as good as mine. ;)" + " Error code: %d\n", ifconfig_err_errno( + lifh)); + break; } + + ifconfig_close(lifh); + lifh = NULL; + free(ifname); + free(ifactualname); + return (-1); } Index: head/share/examples/libifconfig/ifdestroy.c =================================================================== --- head/share/examples/libifconfig/ifdestroy.c (revision 305394) +++ head/share/examples/libifconfig/ifdestroy.c (revision 305395) @@ -1,87 +1,84 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { + char *ifname; + if (argc != 2) { errx(EINVAL, "Invalid number of arguments." " Only one argument is accepted, and it should be the name" " of the interface to be destroyed."); } - char *ifname; - /* We have a static number of arguments. Therefore we can do it simple. */ ifname = strdup(argv[1]); printf("Interface name: %s\n", ifname); ifconfig_handle_t *lifh = ifconfig_open(); if (ifconfig_destroy_interface(lifh, ifname) == 0) { printf("Successfully destroyed interface '%s'.", ifname); ifconfig_close(lifh); lifh = NULL; free(ifname); return (0); - } else { - switch (ifconfig_err_errtype(lifh)) { - case SOCKET: - warnx("couldn't create socket. This shouldn't happen.\n"); - break; - case IOCTL: - if (ifconfig_err_ioctlreq(lifh) == SIOCIFDESTROY) { - warnx( - "Failed to destroy interface (SIOCIFDESTROY)\n"); - } - break; - default: + } + + switch (ifconfig_err_errtype(lifh)) { + case SOCKET: + warnx("couldn't create socket. This shouldn't happen.\n"); + break; + case IOCTL: + if (ifconfig_err_ioctlreq(lifh) == SIOCIFDESTROY) { warnx( - "Should basically never end up here in this example.\n"); - break; + "Failed to destroy interface (SIOCIFDESTROY)\n"); } - - ifconfig_close(lifh); - lifh = NULL; - free(ifname); - return (-1); + break; + default: + warnx( + "Should basically never end up here in this example.\n"); + break; } + + ifconfig_close(lifh); + lifh = NULL; + free(ifname); + return (-1); } Index: head/share/examples/libifconfig/setdescription.c =================================================================== --- head/share/examples/libifconfig/setdescription.c (revision 305394) +++ head/share/examples/libifconfig/setdescription.c (revision 305395) @@ -1,91 +1,89 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #include #include #include #include #include #include -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { + char *ifname, *ifdescr, *curdescr; + if (argc != 3) { errx(EINVAL, "Invalid number of arguments." " First argument should be interface name, second argument" " should be the description to set."); } - char *ifname, *ifdescr, *curdescr; /* We have a static number of arguments. Therefore we can do it simple. */ ifname = strdup(argv[1]); ifdescr = strdup(argv[2]); curdescr = NULL; printf("Interface name: %s\n", ifname); ifconfig_handle_t *lifh = ifconfig_open(); if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) { printf("Old description: %s\n", curdescr); } printf("New description: %s\n\n", ifdescr); if (ifconfig_set_description(lifh, ifname, ifdescr) == 0) { printf("New description successfully set.\n"); } else { switch (ifconfig_err_errtype(lifh)) { case SOCKET: err(ifconfig_err_errno(lifh), "Socket error"); break; case IOCTL: err(ifconfig_err_errno( lifh), "IOCTL(%lu) error", ifconfig_err_ioctlreq(lifh)); break; case OTHER: err(ifconfig_err_errno(lifh), "Other error"); break; } } free(ifname); free(ifdescr); free(curdescr); ifname = NULL; ifdescr = NULL; curdescr = NULL; ifconfig_close(lifh); return (0); } Index: head/share/examples/libifconfig/setmtu.c =================================================================== --- head/share/examples/libifconfig/setmtu.c (revision 305394) +++ head/share/examples/libifconfig/setmtu.c (revision 305395) @@ -1,94 +1,92 @@ /* * Copyright (c) 2016, Marie Helene Kvello-Aune * All rights reserved. * * 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, * thislist 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 of the copyright holder 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 HOLDER 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. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { + char *ifname, *ptr; + int mtu; + if (argc != 3) { errx(EINVAL, "Invalid number of arguments." " First argument should be interface name, second argument" " should be the MTU to set."); } - char *ifname, *ptr; - int mtu; - /* We have a static number of arguments. Therefore we can do it simple. */ ifname = strdup(argv[1]); mtu = (int)strtol(argv[2], &ptr, 10); printf("Interface name: %s\n", ifname); printf("New MTU: %d", mtu); ifconfig_handle_t *lifh = ifconfig_open(); if (ifconfig_set_mtu(lifh, ifname, mtu) == 0) { printf("Successfully changed MTU of %s to %d\n", ifname, mtu); ifconfig_close(lifh); lifh = NULL; free(ifname); return (0); - } else { - switch (ifconfig_err_errtype(lifh)) { - case SOCKET: - warnx("couldn't create socket. This shouldn't happen.\n"); - break; - case IOCTL: - if (ifconfig_err_ioctlreq(lifh) == SIOCSIFMTU) { - warnx("Failed to set MTU (SIOCSIFMTU)\n"); - } else { - warnx( - "Failed to set MTU due to error in unexpected ioctl() call %lu. Error code: %i.\n", - ifconfig_err_ioctlreq(lifh), - ifconfig_err_errno(lifh)); - } - break; - default: + } + + switch (ifconfig_err_errtype(lifh)) { + case SOCKET: + warnx("couldn't create socket. This shouldn't happen.\n"); + break; + case IOCTL: + if (ifconfig_err_ioctlreq(lifh) == SIOCSIFMTU) { + warnx("Failed to set MTU (SIOCSIFMTU)\n"); + } else { warnx( - "Should basically never end up here in this example.\n"); - break; + "Failed to set MTU due to error in unexpected ioctl() call %lu. Error code: %i.\n", + ifconfig_err_ioctlreq(lifh), + ifconfig_err_errno(lifh)); } - - ifconfig_close(lifh); - lifh = NULL; - free(ifname); - return (-1); + break; + default: + warnx( + "Should basically never end up here in this example.\n"); + break; } + + ifconfig_close(lifh); + lifh = NULL; + free(ifname); + return (-1); }