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Diffstat (limited to 'lib/radius/custom.c')
| -rw-r--r-- | lib/radius/custom.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/lib/radius/custom.c b/lib/radius/custom.c new file mode 100644 index 0000000..917939a --- /dev/null +++ b/lib/radius/custom.c @@ -0,0 +1,163 @@ +/* +Copyright (c) 2011, Network RADIUS SARL +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of the <organization> 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 <COPYRIGHT HOLDER> 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. + */ +/* + * Copyright (c) 2006 Kungliga Tekniska HAÎåÎÝgskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. + * + * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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. + */ + +/** \file custom.c + * \brief Functions which should be customized for your local system. + */ + +#include "client.h" + +#include <unistd.h> +#include <fcntl.h> + +#ifdef WIN32 +#include <wincrypt.h> + +volatile static HCRYPTPROV nr_cryptprovider = 0; + +static HCRYPTPROV +nr_CryptProvider(void) +{ + BOOL rv; + HCRYPTPROV cryptprovider = 0; + + if (nr_cryptprovider != 0) + return nr_cryptprovider; + + rv = CryptAcquireContext(&cryptprovider, NULL, + MS_ENHANCED_PROV, PROV_RSA_FULL, + 0); + + if (GetLastError() == NTE_BAD_KEYSET) { + if(!rv) + rv = CryptAcquireContext(&cryptprovider, NULL, + MS_ENHANCED_PROV, PROV_RSA_FULL, + CRYPT_NEWKEYSET); + } + + if (rv && + InterlockedCompareExchangePointer((PVOID *) &nr_cryptprovider, + (PVOID) cryptprovider, 0) != 0) { + + CryptReleaseContext(cryptprovider, 0); + cryptprovider = nr_cryptprovider; + } + + return cryptprovider; +} + +ssize_t nr_rand_bytes(uint8_t *data, size_t data_len) +{ + if (CryptGenRandom(nr_CryptProvider(), data_len, data)) + return 0; + return data_len; +} +#else +ssize_t nr_rand_bytes(uint8_t *data, size_t data_len) +{ + static int fd = -1; + + if (fd < 0) { + fd = open("/dev/urandom", O_RDONLY); + if (fd < 0) { + nr_strerror_printf("Error opening randomness: %s", + strerror(errno)); + return 0; + } + } + + return read(fd, data, data_len); +} +#endif /* WIN32 */ + +uint32_t nr_rand(void) +{ + uint32_t lvalue; + + nr_rand_bytes((void *)&lvalue, sizeof(lvalue)); + return lvalue; +} + + +#ifndef USEC +#define USEC (1000000) +#endif + +void nr_timeval_add(struct timeval *t, unsigned int seconds, unsigned int usec) +{ + t->tv_sec += seconds; + t->tv_sec += usec / USEC; + t->tv_usec += usec % USEC; + if (t->tv_usec > USEC) { + t->tv_sec++; + t->tv_usec -= USEC; + } +} + +int nr_timeval_cmp(const struct timeval *a, const struct timeval *b) +{ + if (a->tv_sec > b->tv_sec) return +1; + if (a->tv_sec < b->tv_sec) return -1; + + if (a->tv_usec > b->tv_usec) return +1; + if (a->tv_usec < b->tv_usec) return -1; + + return 0; +} + |