diff options
| -rw-r--r-- | libdiskfs/io-reauthenticate.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/libdiskfs/io-reauthenticate.c b/libdiskfs/io-reauthenticate.c index 25765161..c04b9315 100644 --- a/libdiskfs/io-reauthenticate.c +++ b/libdiskfs/io-reauthenticate.c @@ -38,23 +38,32 @@ diskfs_S_io_reauthenticate (struct protid *cred, aux_uids = aubuf; aux_gids = agbuf; + /* This routine must carefully ignore EINTR because we + are a simpleroutine, so callers won't know to restart. */ + mutex_lock (&cred->po->np->lock); - err = diskfs_start_protid (cred->po, &newcred); + do + err = diskfs_start_protid (cred->po, &newcred); + while (err == EINTR); if (err) { mutex_unlock (&cred->po->np->lock); return err; } - err = auth_server_authenticate (diskfs_auth_server_port, - rend_port, - MACH_MSG_TYPE_COPY_SEND, - ports_get_right (newcred), - MACH_MSG_TYPE_MAKE_SEND, - &gen_uids, &genuidlen, - &aux_uids, &auxuidlen, - &gen_gids, &gengidlen, - &aux_gids, &auxgidlen); + do + { + err = auth_server_authenticate (diskfs_auth_server_port, + rend_port, + MACH_MSG_TYPE_COPY_SEND, + ports_get_right (newcred), + MACH_MSG_TYPE_MAKE_SEND, + &gen_uids, &genuidlen, + &aux_uids, &auxuidlen, + &gen_gids, &gengidlen, + &aux_gids, &auxgidlen); + } + while (err == EINTR); mach_port_deallocate (mach_task_self (), rend_port); if (err) |