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/*--------------------------------------------------------------------
* Copyright © 2016 James Hunt <jamesodhunt@ubuntu.com>.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*--------------------------------------------------------------------
*/
#include "platform-netbsd.h"
static struct procenv_map signal_map_netbsd[] = {
mk_map_entry (SIGABRT),
mk_map_entry (SIGALRM),
mk_map_entry (SIGBUS),
{ SIGCHLD, "SIGCHLD|SIGCLD" },
mk_map_entry (SIGCONT),
mk_map_entry (SIGFPE),
mk_map_entry (SIGHUP),
mk_map_entry (SIGILL),
mk_map_entry (SIGINT),
mk_map_entry (SIGKILL),
mk_map_entry (SIGPIPE),
mk_map_entry (SIGQUIT),
mk_map_entry (SIGSEGV),
mk_map_entry (SIGSTOP),
mk_map_entry (SIGTERM),
mk_map_entry (SIGTRAP),
mk_map_entry (SIGTSTP),
mk_map_entry (SIGTTIN),
mk_map_entry (SIGUSR1),
mk_map_entry (SIGUSR2),
mk_map_entry (SIGIO),
mk_map_entry (SIGPROF),
mk_map_entry (SIGSYS),
mk_map_entry (SIGURG),
mk_map_entry (SIGVTALRM),
mk_map_entry (SIGWINCH),
mk_map_entry (SIGXCPU),
mk_map_entry (SIGXFSZ),
mk_map_entry (SIGEMT),
mk_map_entry (SIGINFO),
mk_map_entry (SIGPWR),
{ 0, NULL },
};
static struct procenv_map64 mntopt_map[] = {
{ MNT_ASYNC , "asynchronous" },
{ MNT_EXPORTED , "NFS-exported" },
{ MNT_LOCAL , "local" },
{ MNT_NOATIME , "noatime" },
{ MNT_NOEXEC , "noexec" },
{ MNT_NOSUID , "nosuid" },
{ MNT_QUOTA , "with quotas" },
{ MNT_RDONLY , "read-only" },
{ MNT_SOFTDEP , "soft-updates" },
#if defined (MNT_SUJ)
{ MNT_SUJ , "journaled soft-updates" },
#endif
{ MNT_SYNCHRONOUS , "synchronous" },
{ MNT_UNION , "union" },
{ 0, NULL }
};
static struct procenv_map if_flag_map_netbsd[] = {
mk_map_entry (IFF_UP),
mk_map_entry (IFF_BROADCAST),
mk_map_entry (IFF_DEBUG),
mk_map_entry (IFF_LOOPBACK),
mk_map_entry (IFF_POINTOPOINT),
mk_map_entry (IFF_RUNNING),
mk_map_entry (IFF_NOARP),
mk_map_entry (IFF_PROMISC),
mk_map_entry (IFF_ALLMULTI),
mk_map_entry (IFF_SIMPLEX),
mk_map_entry (IFF_MULTICAST),
{ 0, NULL }
};
static void
show_mounts_netbsd (ShowMountType what)
{
show_mounts_generic_bsd (what, mntopt_map);
}
/* Who would have thought handling PIDs was so tricky? */
static void
handle_proc_branch_netbsd (void)
{
int count = 0;
int i;
char errors[_POSIX2_LINE_MAX];
kvm_t *kvm;
struct kinfo_proc2 *procs;
struct kinfo_proc2 *p;
pid_t current;
int done = false;
char *str = NULL;
pid_t ultimate_parent = 0;
common_assert ();
current = getpid ();
kvm = kvm_openfiles (NULL, NULL, NULL, KVM_NO_FILES, errors);
if (! kvm)
die ("unable to open kvm");
procs = kvm_getproc2 (kvm, KERN_PROC_ALL, 0, sizeof (struct kinfo_proc2), &count);
if (! procs)
die ("failed to get process info");
/* Calculate the lowest PID number which gives us the ultimate
* parent of all processes.
*
* On NetBSD systems, PID 0 ('[system]') is the ultimate
* parent rather than PID 1 ('init').
*/
p = &procs[0];
ultimate_parent = p->p_pid;
for (i = 1; i < count; i++) {
p = &procs[i];
if (p->p_pid< ultimate_parent)
ultimate_parent = p->p_pid;
}
while (! done) {
for (i = 0; i < count && !done; i++) {
p = &procs[i];
if (p->p_pid == current) {
if (! ultimate_parent && current == ultimate_parent) {
/* Found the "last" PID so record it and hop out */
appendf (&str, "%d ('%*s')",
(int)current,
KI_MAXCOMLEN,
p->p_comm);
done = true;
break;
} else {
/* Found a valid parent pid */
appendf (&str, "%d ('%*s'), ",
(int)current,
KI_MAXCOMLEN,
p->p_comm);
}
/* Move on */
current = p->p_ppid;
}
}
}
if (kvm_close (kvm) < 0)
die ("failed to close kvm");
entry ("ancestry", "%s", str);
free (str);
}
static PROCENV_CPU_SET_TYPE *
get_cpuset_netbsd (void)
{
PROCENV_CPU_SET_TYPE *cs = NULL;
int ret;
cs = cpuset_create ();
if (! cs)
return NULL;
ret = pthread_getaffinity_np (pthread_self (), cpuset_size (cs), cs);
if (ret) {
cpuset_destroy (cs);
return NULL;
}
return cs;
}
static void
free_cpuset_netbsd (PROCENV_CPU_SET_TYPE *cs)
{
cpuset_destroy (cs);
}
bool cpuset_has_cpu_netbsd (const PROCENV_CPU_SET_TYPE *cs,
PROCENV_CPU_TYPE cpu)
{
return cpuset_isset (cpu, cs);
}
/* XXX:Notes:
*
* - show_cpu : it doesn't appear you can query the CPU of the
* current process on NetBSD :-(
*/
struct procenv_ops platform_ops =
{
.driver = PROCENV_SET_DRIVER (netbsd),
.get_kernel_bits = get_kernel_bits_generic,
.get_mtu = get_mtu_generic,
.get_time = get_time_generic,
.get_cpuset = get_cpuset_netbsd,
.free_cpuset = free_cpuset_netbsd,
.cpuset_has_cpu = cpuset_has_cpu_netbsd,
.signal_map = signal_map_netbsd,
.if_flag_map = if_flag_map_netbsd,
.show_clocks = show_clocks_generic,
.show_confstrs = show_confstrs_generic,
.show_cpu_affinities = show_cpu_affinities_generic,
.show_fds = show_fds_generic,
.show_mounts = show_mounts_netbsd,
.show_rlimits = show_rlimits_generic,
.handle_proc_branch = handle_proc_branch_netbsd,
};
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