diff options
Diffstat (limited to 'sbin/dhclient/bpf.c')
| -rw-r--r-- | sbin/dhclient/bpf.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sbin/dhclient/bpf.c b/sbin/dhclient/bpf.c index f435028..c0a1720 100644 --- a/sbin/dhclient/bpf.c +++ b/sbin/dhclient/bpf.c @@ -43,6 +43,8 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <sys/capability.h> + #include "dhcpd.h" #include "privsep.h" #include <sys/capability.h> @@ -132,6 +134,7 @@ int dhcp_bpf_wfilter_len = sizeof(dhcp_bpf_wfilter) / sizeof(struct bpf_insn); void if_register_send(struct interface_info *info) { + cap_rights_t rights; struct bpf_version v; struct bpf_program p; int sock, on = 1; @@ -160,7 +163,8 @@ if_register_send(struct interface_info *info) if (ioctl(info->wfdesc, BIOCLOCK, NULL) < 0) error("Cannot lock bpf"); - if (cap_rights_limit(info->wfdesc, CAP_WRITE) < 0 && errno != ENOSYS) + cap_rights_init(&rights, CAP_WRITE); + if (cap_rights_limit(info->wfdesc, &rights) < 0 && errno != ENOSYS) error("Can't limit bpf descriptor: %m"); /* @@ -213,6 +217,7 @@ void if_register_receive(struct interface_info *info) { static const unsigned long cmds[2] = { SIOCGIFFLAGS, SIOCGIFMEDIA }; + cap_rights_t rights; struct bpf_version v; struct bpf_program p; int flag = 1, sz; @@ -264,10 +269,9 @@ if_register_receive(struct interface_info *info) if (ioctl(info->rfdesc, BIOCLOCK, NULL) < 0) error("Cannot lock bpf"); - if (cap_rights_limit(info->rfdesc, - CAP_IOCTL | CAP_POLL_EVENT | CAP_READ) < 0 && errno != ENOSYS) { + cap_rights_init(&rights, CAP_IOCTL, CAP_POLL_EVENT, CAP_READ); + if (cap_rights_limit(info->rfdesc, &rights) < 0 && errno != ENOSYS) error("Can't limit bpf descriptor: %m"); - } if (cap_ioctls_limit(info->rfdesc, cmds, 2) < 0 && errno != ENOSYS) error("Can't limit ioctls for bpf descriptor: %m"); } |
