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(_krb5_krb_rd_req): if ticket contains address 0, its ticket less and

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don't really care about from_addr. return better error codes.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21523 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2007-07-12 18:37:19 +00:00
parent 259576387c
commit cc3ac67d05
1 changed files with 17 additions and 4 deletions
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21
lib/krb5/v4_glue.c
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@@ -773,23 +773,29 @@ _krb5_krb_rd_req(krb5_context context,
krb5_storage_set_eof_code(sp, EINVAL); /* XXX */
ret = krb5_ret_int8(sp, &pvno);
if (ret)
if (ret) {
krb5_set_error_string(context, "Failed reading v4 pvno");
goto error;
}
if (pvno != KRB_PROT_VERSION) {
ret = EINVAL; /* XXX */
krb5_set_error_string(context, "Failed v4 pvno not 4");
goto error;
}
ret = krb5_ret_int8(sp, &type);
if (ret)
if (ret) {
krb5_set_error_string(context, "Failed readin v4 type");
goto error;
}
little_endian = type & 1;
type &= ~1;
if(type != AUTH_MSG_APPL_REQUEST && type != AUTH_MSG_APPL_REQUEST_MUTUAL) {
ret = EINVAL; /* RD_AP_MSG_TYPE */
krb5_set_error_string(context, "Not a valid v4 request type");
goto error;
}
@@ -802,6 +808,7 @@ _krb5_krb_rd_req(krb5_context context,
size = krb5_storage_read(sp, ticket.data, ticket.length);
if (size != ticket.length) {
ret = EINVAL;
krb5_set_error_string(context, "Failed reading v4 ticket");
goto error;
}
@@ -816,6 +823,7 @@ _krb5_krb_rd_req(krb5_context context,
size = krb5_storage_read(sp, eaut.data, eaut.length);
if (size != eaut.length) {
ret = EINVAL;
krb5_set_error_string(context, "Failed reading v4 authenticator");
goto error;
}
@@ -828,8 +836,8 @@ _krb5_krb_rd_req(krb5_context context,
sp = krb5_storage_from_data(&aut);
if (sp == NULL) {
krb5_set_error_string(context, "alloc: out of memory");
ret = ENOMEM;
krb5_set_error_string(context, "alloc: out of memory");
goto error;
}
@@ -849,11 +857,13 @@ _krb5_krb_rd_req(krb5_context context,
if (strcmp(ad->pname, r_name) != 0 ||
strcmp(ad->pinst, r_instance) != 0 ||
strcmp(ad->prealm, r_realm) != 0) {
krb5_set_error_string(context, "v4 principal mismatch");
ret = EINVAL; /* RD_AP_INCON */
goto error;
}
if (from_addr && from_addr != ad->address) {
if (from_addr && ad->address && from_addr != ad->address) {
krb5_set_error_string(context, "v4 bad address in ticket");
ret = EINVAL; /* RD_AP_BADD */
goto error;
}
@@ -862,6 +872,7 @@ _krb5_krb_rd_req(krb5_context context,
delta_t = abs((int)(tv.tv_sec - r_time_sec));
if (delta_t > CLOCK_SKEW) {
ret = EINVAL; /* RD_AP_TIME */
krb5_set_error_string(context, "v4 clock skew");
goto error;
}
@@ -871,11 +882,13 @@ _krb5_krb_rd_req(krb5_context context,
if ((tkt_age < 0) && (-tkt_age > CLOCK_SKEW)) {
ret = EINVAL; /* RD_AP_NYV */
krb5_set_error_string(context, "v4 clock skew for expiration");
goto error;
}
if (tv.tv_sec > _krb5_krb_life_to_time(ad->time_sec, ad->life)) {
ret = EINVAL; /* RD_AP_EXP */
krb5_set_error_string(context, "v4 ticket expired");
goto error;
}