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Add missing SysV IPC stats to linprocfs(4). Fixes 'ipcs -l',

Browse Source 
and also helps Oracle.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25669
This commit is contained in:
Edward Tomasz Napierala 2020-07-18 10:56:04 +00:00
parent 7ce051e799
commit 978ffef22f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=363303
1 changed files with 68 additions and 0 deletions
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68
sys/compat/linprocfs/linprocfs.c
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@ -66,6 +66,7 @@ __FBSDID("$FreeBSD$");
#include <sys/resource.h>
#include <sys/sbuf.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/smp.h>
#include <sys/socket.h>
#include <sys/syscallsubr.h>
@ -1404,6 +1405,17 @@ linprocfs_doosbuild(PFS_FILL_ARGS)
return (0);
}
/*
* Filler function for proc/sys/kernel/msgmax
*/
static int
linprocfs_domsgmax(PFS_FILL_ARGS)
{
sbuf_printf(sb, "%d\n", msginfo.msgmax);
return (0);
}
/*
* Filler function for proc/sys/kernel/msgmni
*/
@ -1415,6 +1427,17 @@ linprocfs_domsgmni(PFS_FILL_ARGS)
return (0);
}
/*
* Filler function for proc/sys/kernel/msgmnb
*/
static int
linprocfs_domsgmnb(PFS_FILL_ARGS)
{
sbuf_printf(sb, "%d\n", msginfo.msgmnb);
return (0);
}
/*
* Filler function for proc/sys/kernel/pid_max
*/
@ -1438,6 +1461,39 @@ linprocfs_dosem(PFS_FILL_ARGS)
return (0);
}
/*
* Filler function for proc/sys/kernel/shmall
*/
static int
linprocfs_doshmall(PFS_FILL_ARGS)
{
sbuf_printf(sb, "%lu\n", shminfo.shmall);
return (0);
}
/*
* Filler function for proc/sys/kernel/shmmax
*/
static int
linprocfs_doshmmax(PFS_FILL_ARGS)
{
sbuf_printf(sb, "%lu\n", shminfo.shmmax);
return (0);
}
/*
* Filler function for proc/sys/kernel/shmmni
*/
static int
linprocfs_doshmmni(PFS_FILL_ARGS)
{
sbuf_printf(sb, "%lu\n", shminfo.shmmni);
return (0);
}
/*
* Filler function for proc/sys/kernel/tainted
*/
@ -1837,6 +1893,7 @@ linprocfs_init(PFS_INIT_ARGS)
/* /proc/sys/... */
sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0);
/* /proc/sys/kernel/... */
dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0);
pfs_create_file(dir, "osrelease", &linprocfs_doosrelease,
@ -1845,12 +1902,22 @@ linprocfs_init(PFS_INIT_ARGS)
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "version", &linprocfs_doosbuild,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "msgmax", &linprocfs_domsgmax,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "msgmni", &linprocfs_domsgmni,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "msgmnb", &linprocfs_domsgmnb,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "pid_max", &linprocfs_dopid_max,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "sem", &linprocfs_dosem,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "shmall", &linprocfs_doshmall,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "shmmax", &linprocfs_doshmmax,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "shmmni", &linprocfs_doshmmni,
NULL, NULL, NULL, PFS_RD);
pfs_create_file(dir, "tainted", &linprocfs_dotainted,
NULL, NULL, NULL, PFS_RD);
@ -1887,3 +1954,4 @@ MODULE_DEPEND(linprocfs, linux, 1, 1, 1);
MODULE_DEPEND(linprocfs, procfs, 1, 1, 1);
MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1);
MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1);
MODULE_DEPEND(linprocfs, sysvshm, 1, 1, 1);