Date: Thu, 13 Aug 2009 10:31:03 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r196178 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/ata dev/cxgb dev/sound/usb dev/usb dev/usb/controller dev/usb/input dev/usb/mis... Message-ID: <200908131031.n7DAV3WZ097854@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: bz Date: Thu Aug 13 10:31:02 2009 New Revision: 196178 URL: http://svn.freebsd.org/changeset/base/196178 Log: MFC r196176: Make it possible to change the vnet sysctl variables on jails with their own virtual network stack. Jails only inheriting a network stack cannot change anything that cannot be changed from within a prison. Reviewed by: rwatson, zec Approved by: re (kib) Modified: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/ata/ (props changed) stable/8/sys/dev/ata/ata-usb.c (props changed) stable/8/sys/dev/cxgb/ (props changed) stable/8/sys/dev/sound/usb/uaudio.c (props changed) stable/8/sys/dev/sound/usb/uaudio.h (props changed) stable/8/sys/dev/sound/usb/uaudio_pcm.c (props changed) stable/8/sys/dev/sound/usb/uaudioreg.h (props changed) stable/8/sys/dev/usb/controller/at91dci.c (props changed) stable/8/sys/dev/usb/controller/at91dci.h (props changed) stable/8/sys/dev/usb/controller/at91dci_atmelarm.c (props changed) stable/8/sys/dev/usb/controller/atmegadci.c (props changed) stable/8/sys/dev/usb/controller/atmegadci.h (props changed) stable/8/sys/dev/usb/controller/atmegadci_atmelarm.c (props changed) stable/8/sys/dev/usb/controller/ehci.c (props changed) stable/8/sys/dev/usb/controller/ehci.h (props changed) stable/8/sys/dev/usb/controller/ehci_ixp4xx.c (props changed) stable/8/sys/dev/usb/controller/ehci_mbus.c (props changed) stable/8/sys/dev/usb/controller/ehci_pci.c (props changed) stable/8/sys/dev/usb/controller/musb_otg.c (props changed) stable/8/sys/dev/usb/controller/musb_otg.h (props changed) stable/8/sys/dev/usb/controller/musb_otg_atmelarm.c (props changed) stable/8/sys/dev/usb/controller/ohci.c (props changed) stable/8/sys/dev/usb/controller/ohci.h (props changed) stable/8/sys/dev/usb/controller/ohci_atmelarm.c (props changed) stable/8/sys/dev/usb/controller/ohci_pci.c (props changed) stable/8/sys/dev/usb/controller/uhci.c (props changed) stable/8/sys/dev/usb/controller/uhci.h (props changed) stable/8/sys/dev/usb/controller/uhci_pci.c (props changed) stable/8/sys/dev/usb/controller/usb_controller.c (props changed) stable/8/sys/dev/usb/controller/uss820dci.c (props changed) stable/8/sys/dev/usb/controller/uss820dci.h (props changed) stable/8/sys/dev/usb/controller/uss820dci_atmelarm.c (props changed) stable/8/sys/dev/usb/input/uhid.c (props changed) stable/8/sys/dev/usb/input/ukbd.c (props changed) stable/8/sys/dev/usb/input/ums.c (props changed) stable/8/sys/dev/usb/input/usb_rdesc.h (props changed) stable/8/sys/dev/usb/misc/udbp.c (props changed) stable/8/sys/dev/usb/misc/udbp.h (props changed) stable/8/sys/dev/usb/misc/ufm.c (props changed) stable/8/sys/dev/usb/net/if_aue.c (props changed) stable/8/sys/dev/usb/net/if_auereg.h (props changed) stable/8/sys/dev/usb/net/if_axe.c (props changed) stable/8/sys/dev/usb/net/if_axereg.h (props changed) stable/8/sys/dev/usb/net/if_cdce.c (props changed) stable/8/sys/dev/usb/net/if_cdcereg.h (props changed) stable/8/sys/dev/usb/net/if_cue.c (props changed) stable/8/sys/dev/usb/net/if_cuereg.h (props changed) stable/8/sys/dev/usb/net/if_kue.c (props changed) stable/8/sys/dev/usb/net/if_kuefw.h (props changed) stable/8/sys/dev/usb/net/if_kuereg.h (props changed) stable/8/sys/dev/usb/net/if_rue.c (props changed) stable/8/sys/dev/usb/net/if_ruereg.h (props changed) stable/8/sys/dev/usb/net/if_udav.c (props changed) stable/8/sys/dev/usb/net/if_udavreg.h (props changed) stable/8/sys/dev/usb/net/usb_ethernet.c (props changed) stable/8/sys/dev/usb/net/usb_ethernet.h (props changed) stable/8/sys/dev/usb/quirk/usb_quirk.c (props changed) stable/8/sys/dev/usb/quirk/usb_quirk.h (props changed) stable/8/sys/dev/usb/serial/u3g.c (props changed) stable/8/sys/dev/usb/serial/uark.c (props changed) stable/8/sys/dev/usb/serial/ubsa.c (props changed) stable/8/sys/dev/usb/serial/ubser.c (props changed) stable/8/sys/dev/usb/serial/uchcom.c (props changed) stable/8/sys/dev/usb/serial/ucycom.c (props changed) stable/8/sys/dev/usb/serial/ufoma.c (props changed) stable/8/sys/dev/usb/serial/uftdi.c (props changed) stable/8/sys/dev/usb/serial/uftdi_reg.h (props changed) stable/8/sys/dev/usb/serial/ugensa.c (props changed) stable/8/sys/dev/usb/serial/uipaq.c (props changed) stable/8/sys/dev/usb/serial/ulpt.c (props changed) stable/8/sys/dev/usb/serial/umct.c (props changed) stable/8/sys/dev/usb/serial/umodem.c (props changed) stable/8/sys/dev/usb/serial/umoscom.c (props changed) stable/8/sys/dev/usb/serial/uplcom.c (props changed) stable/8/sys/dev/usb/serial/usb_serial.c (props changed) stable/8/sys/dev/usb/serial/usb_serial.h (props changed) stable/8/sys/dev/usb/serial/uslcom.c (props changed) stable/8/sys/dev/usb/serial/uvisor.c (props changed) stable/8/sys/dev/usb/serial/uvscom.c (props changed) stable/8/sys/dev/usb/storage/rio500_usb.h (props changed) stable/8/sys/dev/usb/storage/umass.c (props changed) stable/8/sys/dev/usb/storage/urio.c (props changed) stable/8/sys/dev/usb/storage/ustorage_fs.c (props changed) stable/8/sys/dev/usb/template/usb_template.c (props changed) stable/8/sys/dev/usb/template/usb_template.h (props changed) stable/8/sys/dev/usb/template/usb_template_cdce.c (props changed) stable/8/sys/dev/usb/template/usb_template_msc.c (props changed) stable/8/sys/dev/usb/template/usb_template_mtp.c (props changed) stable/8/sys/dev/usb/ufm_ioctl.h (props changed) stable/8/sys/dev/usb/usb.h (props changed) stable/8/sys/dev/usb/usb_bus.h (props changed) stable/8/sys/dev/usb/usb_busdma.c (props changed) stable/8/sys/dev/usb/usb_busdma.h (props changed) stable/8/sys/dev/usb/usb_cdc.h (props changed) stable/8/sys/dev/usb/usb_compat_linux.c (props changed) stable/8/sys/dev/usb/usb_compat_linux.h (props changed) stable/8/sys/dev/usb/usb_controller.h (props changed) stable/8/sys/dev/usb/usb_core.c (props changed) stable/8/sys/dev/usb/usb_core.h (props changed) stable/8/sys/dev/usb/usb_debug.c (props changed) stable/8/sys/dev/usb/usb_debug.h (props changed) stable/8/sys/dev/usb/usb_dev.c (props changed) stable/8/sys/dev/usb/usb_dev.h (props changed) stable/8/sys/dev/usb/usb_device.c (props changed) stable/8/sys/dev/usb/usb_device.h (props changed) stable/8/sys/dev/usb/usb_dynamic.c (props changed) stable/8/sys/dev/usb/usb_dynamic.h (props changed) stable/8/sys/dev/usb/usb_endian.h (props changed) stable/8/sys/dev/usb/usb_error.c (props changed) stable/8/sys/dev/usb/usb_generic.c (props changed) stable/8/sys/dev/usb/usb_generic.h (props changed) stable/8/sys/dev/usb/usb_handle_request.c (props changed) stable/8/sys/dev/usb/usb_hid.c (props changed) stable/8/sys/dev/usb/usb_hub.c (props changed) stable/8/sys/dev/usb/usb_hub.h (props changed) stable/8/sys/dev/usb/usb_if.m (props changed) stable/8/sys/dev/usb/usb_ioctl.h (props changed) stable/8/sys/dev/usb/usb_lookup.c (props changed) stable/8/sys/dev/usb/usb_mbuf.c (props changed) stable/8/sys/dev/usb/usb_mbuf.h (props changed) stable/8/sys/dev/usb/usb_msctest.c (props changed) stable/8/sys/dev/usb/usb_msctest.h (props changed) stable/8/sys/dev/usb/usb_parse.c (props changed) stable/8/sys/dev/usb/usb_pci.h (props changed) stable/8/sys/dev/usb/usb_process.c (props changed) stable/8/sys/dev/usb/usb_process.h (props changed) stable/8/sys/dev/usb/usb_request.c (props changed) stable/8/sys/dev/usb/usb_request.h (props changed) stable/8/sys/dev/usb/usb_transfer.c (props changed) stable/8/sys/dev/usb/usb_transfer.h (props changed) stable/8/sys/dev/usb/usb_util.c (props changed) stable/8/sys/dev/usb/usb_util.h (props changed) stable/8/sys/dev/usb/usbdevs (props changed) stable/8/sys/dev/usb/usbhid.h (props changed) stable/8/sys/dev/usb/wlan/if_rum.c (props changed) stable/8/sys/dev/usb/wlan/if_rumfw.h (props changed) stable/8/sys/dev/usb/wlan/if_rumreg.h (props changed) stable/8/sys/dev/usb/wlan/if_rumvar.h (props changed) stable/8/sys/dev/usb/wlan/if_ural.c (props changed) stable/8/sys/dev/usb/wlan/if_uralreg.h (props changed) stable/8/sys/dev/usb/wlan/if_uralvar.h (props changed) stable/8/sys/dev/usb/wlan/if_zyd.c (props changed) stable/8/sys/dev/usb/wlan/if_zydfw.h (props changed) stable/8/sys/dev/usb/wlan/if_zydreg.h (props changed) stable/8/sys/dev/xen/netfront/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) stable/8/sys/kern/kern_jail.c stable/8/sys/kern/kern_sysctl.c stable/8/sys/modules/dtrace/dtnfsclient/ (props changed) stable/8/sys/modules/ip6_mroute_mod/ (props changed) stable/8/sys/modules/ipmi/ipmi_linux/ (props changed) stable/8/sys/net/vnet.h stable/8/sys/netgraph/bluetooth/drivers/ubt/ng_ubt.c (props changed) stable/8/sys/netgraph/bluetooth/drivers/ubt/ng_ubt_var.h (props changed) stable/8/sys/netgraph/bluetooth/drivers/ubtbcmfw/ubtbcmfw.c (props changed) stable/8/sys/netinet/ipfw/ip_dummynet.c (props changed) stable/8/sys/netinet/ipfw/ip_fw2.c (props changed) stable/8/sys/netinet/ipfw/ip_fw_nat.c (props changed) stable/8/sys/netinet/ipfw/ip_fw_pfil.c (props changed) stable/8/sys/netipx/spx_reass.c (props changed) stable/8/sys/sys/jail.h stable/8/sys/sys/sysctl.h stable/8/sys/xen/evtchn.h (props changed) stable/8/sys/xen/hypervisor.h (props changed) stable/8/sys/xen/xen_intr.h (props changed) Modified: stable/8/sys/kern/kern_jail.c ============================================================================== --- stable/8/sys/kern/kern_jail.c Thu Aug 13 10:27:22 2009 (r196177) +++ stable/8/sys/kern/kern_jail.c Thu Aug 13 10:31:02 2009 (r196178) @@ -88,7 +88,11 @@ struct prison prison0 = { .pr_childmax = JAIL_MAX, .pr_hostuuid = DEFAULT_HOSTUUID, .pr_children = LIST_HEAD_INITIALIZER(&prison0.pr_children), +#ifdef VIMAGE + .pr_flags = PR_HOST|PR_VNET, +#else .pr_flags = PR_HOST, +#endif .pr_allow = PR_ALLOW_ALL, }; MTX_SYSINIT(prison0, &prison0.pr_mtx, "jail mutex", MTX_DEF); @@ -3308,6 +3312,25 @@ getcredhostid(struct ucred *cred, unsign mtx_unlock(&cred->cr_prison->pr_mtx); } +#ifdef VIMAGE +/* + * Determine whether the prison represented by cred owns + * its vnet rather than having it inherited. + * + * Returns 1 in case the prison owns the vnet, 0 otherwise. + */ +int +prison_owns_vnet(struct ucred *cred) +{ + + /* + * vnets cannot be added/removed after jail creation, + * so no need to lock here. + */ + return (cred->cr_prison->pr_flags & PR_VNET ? 1 : 0); +} +#endif + /* * Determine whether the subject represented by cred can "see" * status of a mount point. Modified: stable/8/sys/kern/kern_sysctl.c ============================================================================== --- stable/8/sys/kern/kern_sysctl.c Thu Aug 13 10:27:22 2009 (r196177) +++ stable/8/sys/kern/kern_sysctl.c Thu Aug 13 10:31:02 2009 (r196178) @@ -1381,10 +1381,18 @@ sysctl_root(SYSCTL_HANDLER_ARGS) /* Is this sysctl writable by only privileged users? */ if (req->newptr && !(oid->oid_kind & CTLFLAG_ANYBODY)) { + int priv; + if (oid->oid_kind & CTLFLAG_PRISON) - error = priv_check(req->td, PRIV_SYSCTL_WRITEJAIL); + priv = PRIV_SYSCTL_WRITEJAIL; +#ifdef VIMAGE + else if ((oid->oid_kind & CTLFLAG_VNET) && + prison_owns_vnet(req->td->td_ucred)) + priv = PRIV_SYSCTL_WRITEJAIL; +#endif else - error = priv_check(req->td, PRIV_SYSCTL_WRITE); + priv = PRIV_SYSCTL_WRITE; + error = priv_check(req->td, priv); if (error) return (error); } Modified: stable/8/sys/net/vnet.h ============================================================================== --- stable/8/sys/net/vnet.h Thu Aug 13 10:27:22 2009 (r196177) +++ stable/8/sys/net/vnet.h Thu Aug 13 10:31:02 2009 (r196178) @@ -232,21 +232,25 @@ int vnet_sysctl_handle_string(SYSCTL_HAN int vnet_sysctl_handle_uint(SYSCTL_HANDLER_ARGS); #define SYSCTL_VNET_INT(parent, nbr, name, access, ptr, val, descr) \ - SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|CTLFLAG_MPSAFE|(access), \ + SYSCTL_OID(parent, nbr, name, \ + CTLTYPE_INT|CTLFLAG_MPSAFE|CTLFLAG_VNET|(access), \ ptr, val, vnet_sysctl_handle_int, "I", descr) #define SYSCTL_VNET_PROC(parent, nbr, name, access, ptr, arg, handler, \ fmt, descr) \ - SYSCTL_OID(parent, nbr, name, access, ptr, arg, handler, fmt, \ - descr) + SYSCTL_OID(parent, nbr, name, CTLFLAG_VNET|(access), ptr, arg, \ + handler, fmt, descr) #define SYSCTL_VNET_STRING(parent, nbr, name, access, arg, len, descr) \ - SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), arg, \ - len, vnet_sysctl_handle_string, "A", descr) + SYSCTL_OID(parent, nbr, name, \ + CTLTYPE_STRING|CTLFLAG_VNET|(access), \ + arg, len, vnet_sysctl_handle_string, "A", descr) #define SYSCTL_VNET_STRUCT(parent, nbr, name, access, ptr, type, descr) \ - SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), ptr, \ + SYSCTL_OID(parent, nbr, name, \ + CTLTYPE_OPAQUE|CTLFLAG_VNET|(access), ptr, \ sizeof(struct type), vnet_sysctl_handle_opaque, "S," #type, \ descr) #define SYSCTL_VNET_UINT(parent, nbr, name, access, ptr, val, descr) \ - SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|CTLFLAG_MPSAFE|(access), \ + SYSCTL_OID(parent, nbr, name, \ + CTLTYPE_UINT|CTLFLAG_MPSAFE|CTLFLAG_VNET|(access), \ ptr, val, vnet_sysctl_handle_uint, "IU", descr) #define VNET_SYSCTL_ARG(req, arg1) do { \ if (arg1 != NULL) \ Modified: stable/8/sys/sys/jail.h ============================================================================== --- stable/8/sys/sys/jail.h Thu Aug 13 10:27:22 2009 (r196177) +++ stable/8/sys/sys/jail.h Thu Aug 13 10:31:02 2009 (r196178) @@ -341,6 +341,7 @@ void getcredhostuuid(struct ucred *, cha void getcredhostid(struct ucred *, unsigned long *); int prison_allow(struct ucred *, unsigned); int prison_check(struct ucred *cred1, struct ucred *cred2); +int prison_owns_vnet(struct ucred *); int prison_canseemount(struct ucred *cred, struct mount *mp); void prison_enforce_statfs(struct ucred *cred, struct mount *mp, struct statfs *sp); Modified: stable/8/sys/sys/sysctl.h ============================================================================== --- stable/8/sys/sys/sysctl.h Thu Aug 13 10:27:22 2009 (r196177) +++ stable/8/sys/sys/sysctl.h Thu Aug 13 10:31:02 2009 (r196178) @@ -85,6 +85,7 @@ struct ctlname { #define CTLMASK_SECURE 0x00F00000 /* Secure level */ #define CTLFLAG_TUN 0x00080000 /* Tunable variable */ #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ +#define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) /*
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200908131031.n7DAV3WZ097854>