652731ab59
and used by tar. [1] - bsd-user: Fix crashes in sysctl.kern.proc in 32bit envs on 64bit. [1] - Bump PORTREVISION. Submitted by: sson [1]
154 lines
4.8 KiB
Plaintext
154 lines
4.8 KiB
Plaintext
diff --git a/bsd-user/freebsd/os-sys.c b/bsd-user/freebsd/os-sys.c
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index 6012562..87a6aa7 100644
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--- a/bsd-user/freebsd/os-sys.c
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+++ b/bsd-user/freebsd/os-sys.c
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@@ -1,7 +1,7 @@
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/*
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* FreeBSD sysctl() and sysarch() system call emulation
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*
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- * Copyright (c) 2013 Stacey D. Son
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+ * Copyright (c) 2013-14 Stacey D. Son
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@@ -19,6 +19,7 @@
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#include <sys/types.h>
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#include <sys/param.h>
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+#include <sys/mount.h>
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#include <sys/sysctl.h>
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#include <string.h>
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@@ -28,6 +29,59 @@
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#include "target_os_vmparam.h"
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/*
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+ * XXX The following should maybe go some place else. Also, see the note
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+ * about using "thunk" for sysctl's that pass data using structures.
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+ */
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+/* From sys/mount.h: */
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+#define TARGET_MFSNAMELEN 16 /* length of type name including null */
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+struct target_xvfsconf {
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+ abi_ulong vfc_vfsops; /* filesystem op vector - not used */
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+ char vfc_name[TARGET_MFSNAMELEN]; /* filesystem type name */
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+ int32_t vfc_typenum; /* historic fs type number */
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+ int32_t vfc_refcount; /* number mounted of this type */
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+ int32_t vfc_flags; /* permanent flags */
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+ abi_ulong vfc_next; /* next int list - not used */
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+};
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+
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+/* vfc_flag definitions */
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+#define TARGET_VFCF_STATIC 0x00010000 /* statically compiled into kernel */
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+#define TARGET_VFCF_NETWORK 0x00020000 /* may get data over the network */
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+#define TARGET_VFCF_READONLY 0x00040000 /* writes are not implemented */
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+#define TARGET_VFCF_SYNTHETIC 0x00080000 /* doesn't represent real files */
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+#define TARGET_VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */
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+#define TARGET_VFCF_UNICODE 0x00200000 /* stores file names as Unicode */
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+#define TARGET_VFCF_JAIL 0x00400000 /* can be mounted within a jail */
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+#define TARGET_VFCF_DELEGADMIN 0x00800000 /* supports delegated admin */
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+#define TARGET_VFCF_SBDRY 0x01000000 /* defer stop requests */
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+
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+static int
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+host_to_target_vfc_flags(int flags)
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+{
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+ int ret = 0;
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+
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+ if (flags & VFCF_STATIC)
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+ ret |= TARGET_VFCF_STATIC;
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+ if (flags & VFCF_NETWORK)
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+ ret |= TARGET_VFCF_NETWORK;
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+ if (flags & VFCF_READONLY)
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+ ret |= TARGET_VFCF_READONLY;
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+ if (flags & VFCF_SYNTHETIC)
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+ ret |= TARGET_VFCF_SYNTHETIC;
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+ if (flags & VFCF_LOOPBACK)
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+ ret |= TARGET_VFCF_LOOPBACK;
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+ if (flags & VFCF_UNICODE)
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+ ret |= TARGET_VFCF_UNICODE;
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+ if (flags & VFCF_JAIL)
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+ ret |= TARGET_VFCF_JAIL;
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+ if (flags & VFCF_DELEGADMIN)
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+ ret |= TARGET_VFCF_DELEGADMIN;
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+ if (flags & VFCF_SBDRY)
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+ ret |= TARGET_VFCF_SBDRY;
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+
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+ return ret;
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+}
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+
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+/*
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* XXX this uses the undocumented oidfmt interface to find the kind of
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* a requested sysctl, see /sys/kern/kern_sysctl.c:sysctl_sysctl_oidfmt()
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* (compare to src/sbin/sysctl/sysctl.c)
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@@ -161,6 +215,7 @@ abi_long do_freebsd_sysctl(CPUArchState *env, abi_ulong namep, int32_t namelen,
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oidfmt(snamep, namelen, NULL, &kind);
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/* Handle some arch/emulator dependent sysctl()'s here. */
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+ /* XXX sysctl()'s that pass structs should use thunk like ioctl(). */
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switch (snamep[0]) {
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case CTL_KERN:
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switch (snamep[1]) {
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@@ -212,6 +267,63 @@ abi_long do_freebsd_sysctl(CPUArchState *env, abi_ulong namep, int32_t namelen,
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}
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break;
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+ case CTL_VFS:
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+ {
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+ static int oid_vfs_conflist;
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+
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+ if (!oid_vfs_conflist) {
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+ int real_oid[CTL_MAXNAME+2];
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+ size_t len = sizeof(real_oid) / sizeof(int);
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+
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+ if (sysctlnametomib("vfs.conflist", real_oid, &len) >= 0)
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+ oid_vfs_conflist = real_oid[1];
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+ }
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+
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+ if (oid_vfs_conflist && snamep[1] == oid_vfs_conflist) {
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+ struct xvfsconf *xvfsp;
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+ struct target_xvfsconf *txp;
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+ int cnt, i;
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+
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+ if (sysctlbyname("vfs.conflist", NULL, &holdlen, NULL, 0) < 0) {
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+ ret = -1;
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+ goto out;
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+ }
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+ cnt = holdlen / sizeof(struct xvfsconf);
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+ if (!holdp) {
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+ holdlen = cnt * sizeof(struct target_xvfsconf);
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+ ret = 0;
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+ goto out;
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+ }
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+ xvfsp = (struct xvfsconf *)g_malloc(holdlen);
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+ if (xvfsp == NULL) {
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+ ret = -TARGET_ENOMEM;
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+ goto out;
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+ }
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+ if (sysctlbyname("vfs.conflist", xvfsp, &holdlen, NULL, 0) < 0){
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+ g_free(xvfsp);
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+ ret = -1;
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+ goto out;
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+ }
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+ cnt = holdlen / sizeof(struct xvfsconf);
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+ holdlen = cnt * sizeof(struct target_xvfsconf);
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+ txp = (struct target_xvfsconf *)holdp;
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+ for (i = 0; i < cnt; i++) {
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+ txp[i].vfc_vfsops = 0;
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+ strlcpy(txp[i].vfc_name, xvfsp[i].vfc_name,
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+ TARGET_MFSNAMELEN);
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+ txp[i].vfc_typenum = tswap32(xvfsp[i].vfc_typenum);
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+ txp[i].vfc_refcount = tswap32(xvfsp[i].vfc_refcount);
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+ txp[i].vfc_flags = tswap32(
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+ host_to_target_vfc_flags(xvfsp[i].vfc_flags));
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+ txp[i].vfc_next = 0;
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+ }
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+ g_free(xvfsp);
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+ ret = 0;
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+ goto out;
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+ }
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+ }
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+ break;
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+
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case CTL_HW:
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switch (snamep[1]) {
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case HW_MACHINE:
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