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glibc  2.9
Functions
svc_auth.h File Reference
#include <sunrpc/rpc/svc_auth.h>

Go to the source code of this file.

Functions

enum auth_stat _svcauth_unix (struct svc_req *rqst, struct rpc_msg *msg)
enum auth_stat _svcauth_short (struct svc_req *rqst, struct rpc_msg *msg)
enum auth_stat _authenticate_internal (struct svc_req *__rqst, struct rpc_msg *__msg) attribute_hidden

Function Documentation

enum auth_stat _authenticate_internal ( struct svc_req __rqst,
struct rpc_msg __msg 
)
enum auth_stat _svcauth_short ( struct svc_req rqst,
struct rpc_msg msg 
)

Definition at line 147 of file svc_authux.c.

{
  return AUTH_REJECTEDCRED;
}
enum auth_stat _svcauth_unix ( struct svc_req rqst,
struct rpc_msg msg 
)

Definition at line 50 of file svc_authux.c.

{
  enum auth_stat stat;
  XDR xdrs;
  struct authunix_parms *aup;
  int32_t *buf;
  struct area
    {
      struct authunix_parms area_aup;
      char area_machname[MAX_MACHINE_NAME + 1];
      gid_t area_gids[NGRPS];
    }
   *area;
  u_int auth_len;
  u_int str_len, gid_len;
  u_int i;

  area = (struct area *) rqst->rq_clntcred;
  aup = &area->area_aup;
  aup->aup_machname = area->area_machname;
  aup->aup_gids = area->area_gids;
  auth_len = (u_int) msg->rm_call.cb_cred.oa_length;
  INTUSE(xdrmem_create) (&xdrs, msg->rm_call.cb_cred.oa_base, auth_len,
                      XDR_DECODE);
  buf = XDR_INLINE (&xdrs, auth_len);
  if (buf != NULL)
    {
      aup->aup_time = IXDR_GET_LONG (buf);
      str_len = IXDR_GET_U_INT32 (buf);
      if (str_len > MAX_MACHINE_NAME)
       {
         stat = AUTH_BADCRED;
         goto done;
       }
      memcpy (aup->aup_machname, (caddr_t) buf, (u_int) str_len);
      aup->aup_machname[str_len] = 0;
      str_len = RNDUP (str_len);
      buf = (int32_t *) ((char *) buf + str_len);
      aup->aup_uid = IXDR_GET_LONG (buf);
      aup->aup_gid = IXDR_GET_LONG (buf);
      gid_len = IXDR_GET_U_INT32 (buf);
      if (gid_len > NGRPS)
       {
         stat = AUTH_BADCRED;
         goto done;
       }
      aup->aup_len = gid_len;
      for (i = 0; i < gid_len; i++)
       {
         aup->aup_gids[i] = IXDR_GET_LONG (buf);
       }
      /*
       * five is the smallest unix credentials structure -
       * timestamp, hostname len (0), uid, gid, and gids len (0).
       */
      if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len)
       {
         stat = AUTH_BADCRED;
         goto done;
       }
    }
  else if (!INTUSE(xdr_authunix_parms) (&xdrs, aup))
    {
      xdrs.x_op = XDR_FREE;
      (void) INTUSE(xdr_authunix_parms) (&xdrs, aup);
      stat = AUTH_BADCRED;
      goto done;
    }

  /* get the verifier */
  if ((u_int)msg->rm_call.cb_verf.oa_length)
    {
      rqst->rq_xprt->xp_verf.oa_flavor =
       msg->rm_call.cb_verf.oa_flavor;
      rqst->rq_xprt->xp_verf.oa_base =
       msg->rm_call.cb_verf.oa_base;
      rqst->rq_xprt->xp_verf.oa_length =
       msg->rm_call.cb_verf.oa_length;
    }
  else
    {
      rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
      rqst->rq_xprt->xp_verf.oa_length = 0;
    }
  stat = AUTH_OK;
done:
  XDR_DESTROY (&xdrs);
  return stat;
}