[src/trunk]: src/tests/net/bpf Add tests for several bpf ioctls

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/93cd729adde3
branches:  trunk
changeset: 821546:93cd729adde3
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Thu Feb 09 02:18:13 2017 +0000

description:
Add tests for several bpf ioctls

diffstat:

 tests/net/bpf/t_bpf.c |  141 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 139 insertions(+), 2 deletions(-)

diffs (175 lines):

diff -r 855414826864 -r 93cd729adde3 tests/net/bpf/t_bpf.c
--- a/tests/net/bpf/t_bpf.c     Thu Feb 09 01:55:41 2017 +0000
+++ b/tests/net/bpf/t_bpf.c     Thu Feb 09 02:18:13 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_bpf.c,v 1.7 2017/02/01 08:04:49 ozaki-r Exp $        */
+/*     $NetBSD: t_bpf.c,v 1.8 2017/02/09 02:18:13 ozaki-r Exp $        */
 
 /*-
  * Copyright (c) 2010 Antti Kantee.  All Rights Reserved.
@@ -25,7 +25,7 @@
  * SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_bpf.c,v 1.7 2017/02/01 08:04:49 ozaki-r Exp $");
+__RCSID("$NetBSD: t_bpf.c,v 1.8 2017/02/09 02:18:13 ozaki-r Exp $");
 
 #include <sys/param.h>
 #include <sys/ioctl.h>
@@ -37,6 +37,7 @@
 
 #include <net/if.h>
 #include <net/bpf.h>
+#include <net/dlt.h>
 
 #include <fcntl.h>
 #include <stdio.h>
@@ -199,6 +200,138 @@
            "Don't allow to change buflen after binding bpf to an interface");
 }
 
+ATF_TC(bpf_ioctl_PROMISC);
+ATF_TC_HEAD(bpf_ioctl_PROMISC, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Checks behaviors of BIOCPROMISC");
+}
+
+ATF_TC_BODY(bpf_ioctl_PROMISC, tc)
+{
+       struct ifreq ifr;
+       int ifnum, bpfd;
+
+       RZ(rump_init());
+       RZ(rump_pub_shmif_create(NULL, &ifnum));
+       sprintf(ifr.ifr_name, "shmif%d", ifnum);
+
+       RL(bpfd = rump_sys_open("/dev/bpf", O_RDWR));
+
+       ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCPROMISC, NULL), -1,
+           "Don't allow to call ioctl(BIOCPROMISC) without interface");
+
+       RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
+
+       RL(rump_sys_ioctl(bpfd, BIOCPROMISC, NULL));
+       /* TODO check if_flags */
+}
+
+ATF_TC(bpf_ioctl_SETIF);
+ATF_TC_HEAD(bpf_ioctl_SETIF, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Checks behaviors of BIOCSETIF");
+}
+
+ATF_TC_BODY(bpf_ioctl_SETIF, tc)
+{
+       struct ifreq ifr;
+       int ifnum, bpfd;
+
+       RZ(rump_init());
+
+       RL(bpfd = rump_sys_open("/dev/bpf", O_RDWR));
+
+       RZ(rump_pub_shmif_create(NULL, &ifnum));
+       sprintf(ifr.ifr_name, "shmif%d", ifnum);
+       RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
+
+       /* Change the listening interface */
+       RZ(rump_pub_shmif_create(NULL, &ifnum));
+       sprintf(ifr.ifr_name, "shmif%d", ifnum);
+       RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
+}
+
+ATF_TC(bpf_ioctl_DLT);
+ATF_TC_HEAD(bpf_ioctl_DLT, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Checks behaviors of BIOCGDLT and "
+           "BIOCSDLT");
+}
+
+ATF_TC_BODY(bpf_ioctl_DLT, tc)
+{
+       struct ifreq ifr;
+       int ifnum, bpfd;
+       u_int dlt;
+
+       RZ(rump_init());
+       RL(bpfd = rump_sys_open("/dev/bpf", O_RDWR));
+       RZ(rump_pub_shmif_create(NULL, &ifnum));
+       sprintf(ifr.ifr_name, "shmif%d", ifnum);
+
+       ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCGDLT, &dlt), -1,
+           "Don't allow to get a DLT without interfaces");
+
+       RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
+
+       RL(rump_sys_ioctl(bpfd, BIOCGDLT, &dlt));
+       ATF_REQUIRE(dlt == DLT_EN10MB);
+
+       dlt = DLT_NULL;
+       ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCSDLT, &dlt), -1,
+           "Don't allow to set a DLT that doesn't match any listening "
+           "interfaces");
+}
+
+ATF_TC(bpf_ioctl_GDLTLIST);
+ATF_TC_HEAD(bpf_ioctl_GDLTLIST, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Checks behaviors of BIOCGDLTLIST");
+}
+
+ATF_TC_BODY(bpf_ioctl_GDLTLIST, tc)
+{
+       struct ifreq ifr;
+       int ifnum, bpfd;
+       struct bpf_dltlist dltlist;
+
+       RZ(rump_init());
+       RL(bpfd = rump_sys_open("/dev/bpf", O_RDWR));
+       RZ(rump_pub_shmif_create(NULL, &ifnum));
+       sprintf(ifr.ifr_name, "shmif%d", ifnum);
+
+       dltlist.bfl_len = 0;
+       dltlist.bfl_list = NULL;
+       ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCGDLTLIST, &dltlist), -1,
+           "Don't allow to get a DLT list without interfaces");
+
+       RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
+
+       /* Get the size of an avaiable DLT list */
+       dltlist.bfl_len = 0;
+       dltlist.bfl_list = NULL;
+       RL(rump_sys_ioctl(bpfd, BIOCGDLTLIST, &dltlist));
+       ATF_REQUIRE(dltlist.bfl_len == 1);
+
+       /* Get an avaiable DLT list */
+       dltlist.bfl_list = calloc(sizeof(u_int), 1);
+       dltlist.bfl_len = 1;
+       RL(rump_sys_ioctl(bpfd, BIOCGDLTLIST, &dltlist));
+       ATF_REQUIRE(dltlist.bfl_len == 1);
+       ATF_REQUIRE(dltlist.bfl_list[0] == DLT_EN10MB);
+
+       /* Get an avaiable DLT list with a less buffer (fake with bfl_len) */
+       dltlist.bfl_len = 0;
+       ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCGDLTLIST, &dltlist), -1,
+           "This should fail with ENOMEM");
+
+       free(dltlist.bfl_list);
+}
+
 ATF_TP_ADD_TCS(tp)
 {
 
@@ -207,5 +340,9 @@
        ATF_TP_ADD_TC(tp, bpfwritetrunc);
 #endif
        ATF_TP_ADD_TC(tp, bpf_ioctl_BLEN);
+       ATF_TP_ADD_TC(tp, bpf_ioctl_PROMISC);
+       ATF_TP_ADD_TC(tp, bpf_ioctl_SETIF);
+       ATF_TP_ADD_TC(tp, bpf_ioctl_DLT);
+       ATF_TP_ADD_TC(tp, bpf_ioctl_GDLTLIST);
        return atf_no_error();
 }