diff options
Diffstat (limited to 'source4/heimdal/lib/gssapi/spnego/compat.c')
| -rw-r--r-- | source4/heimdal/lib/gssapi/spnego/compat.c | 154 |
1 files changed, 95 insertions, 59 deletions
diff --git a/source4/heimdal/lib/gssapi/spnego/compat.c b/source4/heimdal/lib/gssapi/spnego/compat.c index aeae088258..786eac1340 100644 --- a/source4/heimdal/lib/gssapi/spnego/compat.c +++ b/source4/heimdal/lib/gssapi/spnego/compat.c @@ -32,7 +32,7 @@ #include "spnego/spnego_locl.h" -RCSID("$Id: compat.c,v 1.6 2006/10/07 22:26:59 lha Exp $"); +RCSID("$Id: compat.c,v 1.9 2006/12/18 17:52:26 lha Exp $"); /* * Apparently Microsoft got the OID wrong, and used @@ -42,10 +42,10 @@ RCSID("$Id: compat.c,v 1.6 2006/10/07 22:26:59 lha Exp $"); * prefer to deal with this here rather than inside the * Kerberos mechanism. */ -static gss_OID_desc gss_mskrb_mechanism_oid_desc = +gss_OID_desc _gss_spnego_mskrb_mechanism_oid_desc = {9, (void *)"\x2a\x86\x48\x82\xf7\x12\x01\x02\x02"}; -static gss_OID_desc gss_krb5_mechanism_oid_desc = +gss_OID_desc _gss_spnego_krb5_mechanism_oid_desc = {9, (void *)"\x2a\x86\x48\x86\xf7\x12\x01\x02\x02"}; /* @@ -191,8 +191,8 @@ _gss_spnego_require_mechlist_mic(OM_uint32 *minor_status, if (*require_mic) { if (gss_oid_equal(ctx->negotiated_mech_type, ctx->preferred_mech_type)) { *require_mic = 0; - } else if (gss_oid_equal(ctx->negotiated_mech_type, &gss_krb5_mechanism_oid_desc) && - gss_oid_equal(ctx->preferred_mech_type, &gss_mskrb_mechanism_oid_desc)) { + } else if (gss_oid_equal(ctx->negotiated_mech_type, &_gss_spnego_krb5_mechanism_oid_desc) && + gss_oid_equal(ctx->preferred_mech_type, &_gss_spnego_mskrb_mechanism_oid_desc)) { *require_mic = 0; } } @@ -200,86 +200,122 @@ _gss_spnego_require_mechlist_mic(OM_uint32 *minor_status, return GSS_S_COMPLETE; } -int _gss_spnego_add_mech_type(gss_OID mech_type, - int includeMSCompatOID, - MechTypeList *mechtypelist) +static int +add_mech_type(gss_OID mech_type, + int includeMSCompatOID, + MechTypeList *mechtypelist) { + MechType mech; int ret; if (gss_oid_equal(mech_type, GSS_SPNEGO_MECHANISM)) return 0; if (includeMSCompatOID && - gss_oid_equal(mech_type, &gss_krb5_mechanism_oid_desc)) { - ret = der_get_oid(gss_mskrb_mechanism_oid_desc.elements, - gss_mskrb_mechanism_oid_desc.length, - &mechtypelist->val[mechtypelist->len], + gss_oid_equal(mech_type, &_gss_spnego_krb5_mechanism_oid_desc)) { + ret = der_get_oid(_gss_spnego_mskrb_mechanism_oid_desc.elements, + _gss_spnego_mskrb_mechanism_oid_desc.length, + &mech, NULL); if (ret) return ret; - mechtypelist->len++; + ret = add_MechTypeList(mechtypelist, &mech); + free_MechType(&mech); + if (ret) + return ret; } - ret = der_get_oid(mech_type->elements, - mech_type->length, - &mechtypelist->val[mechtypelist->len], - NULL); + ret = der_get_oid(mech_type->elements, mech_type->length, &mech, NULL); if (ret) return ret; - mechtypelist->len++; - - return 0; + ret = add_MechTypeList(mechtypelist, &mech); + free_MechType(&mech); + return ret; } + OM_uint32 -_gss_spnego_select_mech(OM_uint32 *minor_status, - MechType *mechType, - gss_OID *mech_p) +_gss_spnego_indicate_mechtypelist (OM_uint32 *minor_status, + gss_name_t target_name, + OM_uint32 (*func)(gss_name_t, gss_OID), + int includeMSCompatOID, + const gssspnego_cred cred_handle, + MechTypeList *mechtypelist, + gss_OID *preferred_mech) { - char mechbuf[64]; - size_t mech_len; - gss_OID_desc oid; + gss_OID_set supported_mechs = GSS_C_NO_OID_SET; + gss_OID first_mech = GSS_C_NO_OID; OM_uint32 ret; - - ret = der_put_oid ((unsigned char *)mechbuf + sizeof(mechbuf) - 1, - sizeof(mechbuf), - mechType, - &mech_len); - if (ret) { - return GSS_S_DEFECTIVE_TOKEN; + int i; + + mechtypelist->len = 0; + mechtypelist->val = NULL; + + if (cred_handle != NULL) { + ret = gss_inquire_cred(minor_status, + cred_handle->negotiated_cred_id, + NULL, + NULL, + NULL, + &supported_mechs); + } else { + ret = gss_indicate_mechs(minor_status, &supported_mechs); } - oid.length = mech_len; - oid.elements = mechbuf + sizeof(mechbuf) - mech_len; - - if (gss_oid_equal(&oid, GSS_SPNEGO_MECHANISM)) { - return GSS_S_BAD_MECH; + if (ret != GSS_S_COMPLETE) { + return ret; } - *minor_status = 0; - - /* Translate broken MS Kebreros OID */ - if (gss_oid_equal(&oid, &gss_mskrb_mechanism_oid_desc)) { - gssapi_mech_interface mech; - - mech = __gss_get_mechanism(&gss_krb5_mechanism_oid_desc); - if (mech == NULL) - return GSS_S_BAD_MECH; + if (supported_mechs->count == 0) { + *minor_status = ENOENT; + gss_release_oid_set(minor_status, &supported_mechs); + return GSS_S_FAILURE; + } - ret = gss_duplicate_oid(minor_status, - &gss_mskrb_mechanism_oid_desc, - mech_p); - } else { - gssapi_mech_interface mech; + ret = (*func)(target_name, GSS_KRB5_MECHANISM); + if (ret == GSS_S_COMPLETE) { + ret = add_mech_type(GSS_KRB5_MECHANISM, + includeMSCompatOID, + mechtypelist); + if (!GSS_ERROR(ret)) + first_mech = GSS_KRB5_MECHANISM; + } + ret = GSS_S_COMPLETE; + + for (i = 0; i < supported_mechs->count; i++) { + OM_uint32 subret; + if (gss_oid_equal(&supported_mechs->elements[i], GSS_SPNEGO_MECHANISM)) + continue; + if (gss_oid_equal(&supported_mechs->elements[i], GSS_KRB5_MECHANISM)) + continue; + + subret = (*func)(target_name, &supported_mechs->elements[i]); + if (subret != GSS_S_COMPLETE) + continue; + + ret = add_mech_type(&supported_mechs->elements[i], + includeMSCompatOID, + mechtypelist); + if (ret != 0) { + *minor_status = ret; + ret = GSS_S_FAILURE; + break; + } + if (first_mech == GSS_C_NO_OID) + first_mech = &supported_mechs->elements[i]; + } - mech = __gss_get_mechanism(&oid); - if (mech == NULL) - return GSS_S_BAD_MECH; + if (mechtypelist->len == 0) { + gss_release_oid_set(minor_status, &supported_mechs); + *minor_status = 0; + return GSS_S_BAD_MECH; + } - ret = gss_duplicate_oid(minor_status, - &mech->gm_mech_oid, - mech_p); + if (preferred_mech != NULL) { + ret = gss_duplicate_oid(minor_status, first_mech, preferred_mech); + if (ret != GSS_S_COMPLETE) + free_MechTypeList(mechtypelist); } + gss_release_oid_set(minor_status, &supported_mechs); return ret; } - |