[sr-dev] git:5.3:43aa779e: tls: option to set use fastrand for rand_engine

Module: kamailio Branch: 5.3 Commit: 43aa779ee9e43805e6a7da2c12562fdc89c5c413 URL: https://github.com/kamailio/kamailio/commit/43aa779ee9e43805e6a7da2c12562fd… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2019-10-07T10:51:25+02:00 tls: option to set use fastrand for rand_engine (cherry picked from commit 4f514a7956534f1afc1ef30d8332f5dc3547de4b) --- Modified: src/modules/tls/tls_mod.c Modified: src/modules/tls/tls_rand.c Modified: src/modules/tls/tls_rand.h --- Diff: https://github.com/kamailio/kamailio/commit/43aa779ee9e43805e6a7da2c12562fd… Patch: https://github.com/kamailio/kamailio/commit/43aa779ee9e43805e6a7da2c12562fd… --- diff --git a/src/modules/tls/tls_mod.c b/src/modules/tls/tls_mod.c index 52a45353d6..87759249b2 100644 --- a/src/modules/tls/tls_mod.c +++ b/src/modules/tls/tls_mod.c @@ -449,7 +449,10 @@ int ksr_rand_engine_param(modparam_t type, void* val) LM_DBG("random engine: %.*s\n", reng->len, reng->s); if(reng->len == 5 && strncasecmp(reng->s, "krand", 5) == 0) { LM_DBG("setting krand random engine\n"); - RAND_set_rand_method(RAND_ksr_method()); + RAND_set_rand_method(RAND_ksr_krand_method()); + } else if(reng->len == 8 && strncasecmp(reng->s, "fastrand", 8) == 0) { + LM_DBG("setting fastrand random engine\n"); + RAND_set_rand_method(RAND_ksr_fastrand_method()); } #endif return 0; diff --git a/src/modules/tls/tls_rand.c b/src/modules/tls/tls_rand.c index 0f283306dd..9101251dd7 100644 --- a/src/modules/tls/tls_rand.c +++ b/src/modules/tls/tls_rand.c @@ -27,9 +27,10 @@ #include "../../core/dprint.h" #include "../../core/rand/kam_rand.h" +#include "../../core/rand/fastrand.h" #include "fortuna/random.h" -static int ksr_rand_bytes(unsigned char *outdata, int size) +static int ksr_krand_bytes(unsigned char *outdata, int size) { int r; @@ -57,28 +58,75 @@ static int ksr_rand_bytes(unsigned char *outdata, int size) return 1; } -static int ksr_rand_pseudorand(unsigned char *outdata, int size) +static int ksr_krand_pseudorand(unsigned char *outdata, int size) { - return ksr_rand_bytes(outdata, size); + return ksr_krand_bytes(outdata, size); } -static int ksr_rand_status(void) +static int ksr_krand_status(void) { return 1; } -const RAND_METHOD _ksr_rand_method = { +const RAND_METHOD _ksr_krand_method = { NULL, - ksr_rand_bytes, + ksr_krand_bytes, NULL, NULL, - ksr_rand_pseudorand, - ksr_rand_status + ksr_krand_pseudorand, + ksr_krand_status }; -const RAND_METHOD *RAND_ksr_method(void) +const RAND_METHOD *RAND_ksr_krand_method(void) { - return &_ksr_rand_method; + return &_ksr_krand_method; +} + +static int ksr_fastrand_bytes(unsigned char *outdata, int size) +{ + int r; + + if (size < 0) { + return 0; + } else if (size == 0) { + return 1; + } + + while(size >= sizeof(int)) { + r = kam_rand(); + memcpy(outdata, &r, sizeof(int)); + size -= sizeof(int); + outdata += sizeof(int); + } + if(size>0) { + r = kam_rand(); + memcpy(outdata, &r, size); + } + return 1; +} + +static int ksr_fastrand_pseudorand(unsigned char *outdata, int size) +{ + return ksr_fastrand_bytes(outdata, size); +} + +static int ksr_fastrand_status(void) +{ + return 1; +} + +const RAND_METHOD _ksr_fastrand_method = { + NULL, + ksr_fastrand_bytes, + NULL, + NULL, + ksr_fastrand_pseudorand, + ksr_fastrand_status +}; + +const RAND_METHOD *RAND_ksr_fastrand_method(void) +{ + return &_ksr_fastrand_method; } #endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */ diff --git a/src/modules/tls/tls_rand.h b/src/modules/tls/tls_rand.h index 20b5a20e9c..d1a3f0d37f 100644 --- a/src/modules/tls/tls_rand.h +++ b/src/modules/tls/tls_rand.h @@ -25,7 +25,8 @@ #include <openssl/rand.h> -const RAND_METHOD *RAND_ksr_method(void); +const RAND_METHOD *RAND_ksr_krand_method(void); +const RAND_METHOD *RAND_ksr_fastrand_method(void); #endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */ #endif