Export heimdal's rand-fortuna PRNG to the kernel

[openafs.git] / src / afs / afs_call.c

diff --git a/src/afs/afs_call.c b/src/afs/afs_call.c
index 4e3c4c4..f3448ed 100644 (file)
--- a/src/afs/afs_call.c
+++ b/src/afs/afs_call.c
@@ -33,6 +33,12 @@
 #include "h/ksynch.h"
 #include "h/sunddi.h"
 #endif
+#include <hcrypto/rand.h>
+
+/* No hckernel-specific header for this prototype. */
+#ifndef UKERNEL
+extern void init_hckernel_mutex(void);
+#endif
 
 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_HPUX_ENV)
 #define        AFS_MINBUFFERS  100
@@ -101,6 +107,11 @@ afs_InitSetup(int preallocs)
     if (afs_InitSetup_done)
        return EAGAIN;
 
+    /* Initialize a lock for the kernel hcrypto bits. */
+#ifndef UKERNEL
+    init_hckernel_mutex();
+#endif
+
 #ifdef AFS_SUN510_ENV
     /* Initialize a RW lock for the ifinfo global array */
     rw_init(&afsifinfo_lock, NULL, RW_DRIVER, NULL);
@@ -1314,6 +1325,20 @@ afs_syscall_call(long parm, long parm2, long parm3,
     } else if (parm == AFSOP_SET_RMTSYS_FLAG) {
        afs_rmtsys_enable = parm2;
        code = 0;
+#ifndef UKERNEL
+    } else if (parm == AFSOP_SEED_ENTROPY) {
+       unsigned char *seedbuf;
+
+       if (parm3 > 4096) {
+           code = EFAULT;
+       } else {
+           seedbuf = afs_osi_Alloc(parm3);
+           AFS_COPYIN(AFSKPTR(parm2), seedbuf, parm3, code);
+           RAND_seed(seedbuf, parm3);
+           memset(seedbuf, 0, parm3);
+           afs_osi_Free(seedbuf, parm3);
+       }
+#endif
     } else {
        code = EINVAL;
     }