diff options
Diffstat (limited to 'runtime/lmcry_gcry.c')
| -rw-r--r-- | runtime/lmcry_gcry.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/runtime/lmcry_gcry.c b/runtime/lmcry_gcry.c index cc65051f..bcc001fc 100644 --- a/runtime/lmcry_gcry.c +++ b/runtime/lmcry_gcry.c @@ -45,6 +45,7 @@ DEFobjCurrIf(glbl) /* tables for interfacing with the v6 config system */ static struct cnfparamdescr cnfpdescr[] = { { "cry.key", eCmdHdlrGetWord, 0 }, + { "cry.keyfile", eCmdHdlrGetWord, 0 }, { "cry.mode", eCmdHdlrGetWord, 0 }, /* CBC, ECB, etc */ { "cry.algo", eCmdHdlrGetWord, 0 } }; @@ -89,7 +90,9 @@ SetCnfParam(void *pT, struct nvlst *lst) { lmcry_gcry_t *pThis = (lmcry_gcry_t*) pT; int i, r; + unsigned keylen; uchar *key = NULL; + uchar *keyfile = NULL; uchar *algo = NULL; uchar *mode = NULL; struct cnfparamvals *pvals; @@ -106,6 +109,8 @@ SetCnfParam(void *pT, struct nvlst *lst) continue; if(!strcmp(pblk.descr[i].name, "cry.key")) { key = (uchar*) es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(pblk.descr[i].name, "cry.keyfile")) { + keyfile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); } else if(!strcmp(pblk.descr[i].name, "cry.mode")) { mode = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); } else if(!strcmp(pblk.descr[i].name, "cry.algo")) { @@ -130,22 +135,39 @@ SetCnfParam(void *pT, struct nvlst *lst) } } /* note: key must be set AFTER algo/mode is set (as it depends on them) */ + if(key != NULL && keyfile != NULL) { + errmsg.LogError(0, RS_RET_INVALID_PARAMS, "only one of the following " + "parameters can be specified: cry.key, cry.keyfile\n"); + ABORT_FINALIZE(RS_RET_INVALID_PARAMS); + } if(key != NULL) { errmsg.LogError(0, RS_RET_ERR, "Note: specifying an actual key directly from the " "config file is highly insecure - DO NOT USE FOR PRODUCTION"); - r = rsgcrySetKey(pThis->ctx, key, strlen((char*)key)); - if(r > 0) { - errmsg.LogError(0, RS_RET_INVALID_PARAMS, "Key length %d expected, but " - "key of length %d given", r, strlen((char*)key)); + keylen = strlen((char*)key); + } + if(keyfile != NULL) { + r = gcryGetKeyFromFile((char*)keyfile, (char**)&key, &keylen); + if(r != 0) { + errmsg.LogError(0, RS_RET_ERR, "error %d reading keyfile %s\n", + r, keyfile); ABORT_FINALIZE(RS_RET_INVALID_PARAMS); } } + /* if we reach this point, we have a valid key */ + r = rsgcrySetKey(pThis->ctx, key, keylen); + if(r > 0) { + errmsg.LogError(0, RS_RET_INVALID_PARAMS, "Key length %d expected, but " + "key of length %d given", r, keylen); + ABORT_FINALIZE(RS_RET_INVALID_PARAMS); + } + cnfparamvalsDestruct(pvals, &pblk); if(key != NULL) { memset(key, 0, strlen((char*)key)); free(key); } + free(keyfile); free(algo); free(mode); finalize_it: |