diff options
Diffstat (limited to 'source4/heimdal/lib/gssapi/sequence.c')
| -rwxr-xr-x | source4/heimdal/lib/gssapi/sequence.c | 131 |
1 files changed, 118 insertions, 13 deletions
diff --git a/source4/heimdal/lib/gssapi/sequence.c b/source4/heimdal/lib/gssapi/sequence.c index 973fc6ad05..2851b0a6c8 100755 --- a/source4/heimdal/lib/gssapi/sequence.c +++ b/source4/heimdal/lib/gssapi/sequence.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003 Kungliga Tekniska Högskolan + * Copyright (c) 2003 - 2006 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * @@ -33,7 +33,7 @@ #include "gssapi_locl.h" -RCSID("$Id: sequence.c,v 1.5 2005/04/27 17:49:43 lha Exp $"); +RCSID("$Id: sequence.c,v 1.6 2006/04/12 17:43:39 lha Exp $"); #define DEFAULT_JITTER_WINDOW 20 @@ -46,6 +46,32 @@ struct gss_msg_order { OM_uint32 elem[1]; }; + +/* + * + */ + +static OM_uint32 +msg_order_alloc(OM_uint32 *minor_status, + struct gss_msg_order **o, + OM_uint32 jitter_window) +{ + size_t len; + + len = jitter_window * sizeof((*o)->elem[0]); + len += sizeof(**o); + len -= sizeof((*o)->elem[0]); + + *o = calloc(1, len); + if (*o == NULL) { + *minor_status = ENOMEM; + return GSS_S_FAILURE; + } + + *minor_status = 0; + return GSS_S_COMPLETE; +} + /* * */ @@ -58,21 +84,15 @@ _gssapi_msg_order_create(OM_uint32 *minor_status, OM_uint32 jitter_window, int use_64) { - size_t len; + OM_uint32 ret; if (jitter_window == 0) jitter_window = DEFAULT_JITTER_WINDOW; - len = jitter_window * sizeof((*o)->elem[0]); - len += sizeof(**o); - len -= sizeof((*o)->elem[0]); - - *o = malloc(len); - if (*o == NULL) { - *minor_status = ENOMEM; - return GSS_S_FAILURE; - } - memset(*o, 0, len); + ret = msg_order_alloc(minor_status, o, jitter_window); + if(ret != GSS_S_COMPLETE) + return ret; + (*o)->flags = flags; (*o)->length = 0; (*o)->first_seq = seq_num; @@ -187,3 +207,88 @@ _gssapi_msg_order_f(OM_uint32 flags) { return flags & (GSS_C_SEQUENCE_FLAG|GSS_C_REPLAY_FLAG); } + +/* + * Translate `o` into inter-process format and export in to `sp'. + */ + +krb5_error_code +_gssapi_msg_order_export(krb5_storage *sp, struct gss_msg_order *o) +{ + krb5_error_code kret; + OM_uint32 i; + + kret = krb5_store_int32(sp, o->flags); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->start); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->length); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->jitter_window); + if (kret) + return kret; + kret = krb5_store_int32(sp, o->first_seq); + if (kret) + return kret; + + for (i = 0; i < o->jitter_window; i++) { + kret = krb5_store_int32(sp, o->elem[i]); + if (kret) + return kret; + } + + return 0; +} + +OM_uint32 +_gssapi_msg_order_import(OM_uint32 *minor_status, + krb5_storage *sp, + struct gss_msg_order **o) +{ + OM_uint32 ret; + krb5_error_code kret; + int32_t i, flags, start, length, jitter_window, first_seq; + + kret = krb5_ret_int32(sp, &flags); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &start); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &length); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &jitter_window); + if (kret) + goto failed; + ret = krb5_ret_int32(sp, &first_seq); + if (kret) + goto failed; + + ret = msg_order_alloc(minor_status, o, jitter_window); + if (ret != GSS_S_COMPLETE) + return ret; + + (*o)->flags = flags; + (*o)->start = start; + (*o)->length = length; + (*o)->jitter_window = jitter_window; + (*o)->first_seq = first_seq; + + for( i = 0; i < jitter_window; i++ ) { + kret = krb5_ret_int32(sp, (int32_t*)&((*o)->elem[i])); + if (kret) + goto failed; + } + + *minor_status = 0; + return GSS_S_COMPLETE; + +failed: + _gssapi_msg_order_destroy(o); + *minor_status = kret; + return GSS_S_FAILURE; +} |