Author: markj Date: Fri Jan 12 19:59:46 2018 New Revision: 327888 URL: https://svnweb.freebsd.org/changeset/base/327888
Log: Add "jid" and "jailname" variables to DTrace. These return the jail ID and jail name for the traced process, respectively, and are analogous to "zonename" on Solaris/illumos. "zonename" is now aliased to "jailname". Also add some stress tests for the new variables. Submitted by: Domagoj Stolfa <domagoj.sto...@gmail.com> Reviewed by: dteske (previous version) MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D13877 Added: head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jailname.d head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jid.d Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c head/cddl/usr.sbin/dtrace/tests/common/safety/Makefile head/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c head/sys/cddl/contrib/opensolaris/uts/common/sys/dtrace.h Added: head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jailname.d ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jailname.d Fri Jan 12 19:59:46 2018 (r327888) @@ -0,0 +1,44 @@ +/* + * This file and its contents are supplied under the terms of the + * Common Development and Distribution License ("CDDL"), version 1.0. + * You may only use this file in accordance with the terms version + * 1.0 of the CDDL. + * + * A full copy of the text of the CDDL should have accompanied this + * source. A copy of the CDDL is also available via the Internet at + * http://www.illumos.org/license/CDDL. + */ + +/* + * Copyright 2018 Domagoj Stolfa <domagoj.sto...@cl.cam.ac.uk>. + * + * This software was developed by BAE Systems, the University of Cambridge + * Computer Laboratory, and Memorial University under DARPA/AFRL contract + * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing + * (TC) research program. + * + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * ASSERTION: + * collect jailname at every fbt probe and at every firing of a + * high-frequency profile probe + */ + +fbt::: +{ + @a[jailname] = count(); +} + +profile-4999hz +{ + @a[jailname] = count(); +} + +tick-1sec +/n++ == 10/ +{ + exit(0); +} Added: head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jid.d ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/safety/tst.jid.d Fri Jan 12 19:59:46 2018 (r327888) @@ -0,0 +1,44 @@ +/* + * This file and its contents are supplied under the terms of the + * Common Development and Distribution License ("CDDL"), version 1.0. + * You may only use this file in accordance with the terms version + * 1.0 of the CDDL. + * + * A full copy of the text of the CDDL should have accompanied this + * source. A copy of the CDDL is also available via the Internet at + * http://www.illumos.org/license/CDDL. + */ + +/* + * Copyright 2018 Domagoj Stolfa <domagoj.sto...@cl.cam.ac.uk>. + * + * This software was developed by BAE Systems, the University of Cambridge + * Computer Laboratory, and Memorial University under DARPA/AFRL contract + * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing + * (TC) research program. + * + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * ASSERTION: + * collect jid at every fbt probe and at every firing of a + * high-frequency profile probe + */ + +fbt::: +{ + @a[jid] = count(); +} + +profile-4999hz +{ + @a[jid] = count(); +} + +tick-1sec +/n++ == 10/ +{ + exit(0); +} Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c Fri Jan 12 18:44:28 2018 (r327887) +++ head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c Fri Jan 12 19:59:46 2018 (r327888) @@ -313,6 +313,12 @@ static const dt_ident_t _dtrace_globals[] = { DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint_t" }, +#ifdef __FreeBSD__ +{ "jailname", DT_IDENT_SCALAR, 0, DIF_VAR_JAILNAME, + DT_ATTR_STABCMN, DT_VERS_1_13, &dt_idops_type, "string" }, +{ "jid", DT_IDENT_SCALAR, 0, DIF_VAR_JID, DT_ATTR_STABCMN, DT_VERS_1_13, + &dt_idops_type, "int" }, +#endif { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11, &dt_idops_func, "string(const char *, const char *)" }, { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, @@ -528,10 +534,8 @@ static const dt_ident_t _dtrace_globals[] = { { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, -#ifdef illumos { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, -#endif #ifndef illumos { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, Modified: head/cddl/usr.sbin/dtrace/tests/common/safety/Makefile ============================================================================== --- head/cddl/usr.sbin/dtrace/tests/common/safety/Makefile Fri Jan 12 18:44:28 2018 (r327887) +++ head/cddl/usr.sbin/dtrace/tests/common/safety/Makefile Fri Jan 12 19:59:46 2018 (r327888) @@ -19,6 +19,8 @@ ${PACKAGE}FILES= \ tst.gid.d \ tst.hton.d \ tst.index.d \ + tst.jailname.d \ + tst.jid.d \ tst.msgdsize.d \ tst.msgsize.d \ tst.null.d \ Modified: head/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c Fri Jan 12 18:44:28 2018 (r327887) +++ head/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c Fri Jan 12 19:59:46 2018 (r327888) @@ -3654,6 +3654,24 @@ dtrace_dif_variable(dtrace_mstate_t *mstate, dtrace_st return (dtrace_dif_varstr( (uintptr_t)curthread->t_procp->p_zone->zone_name, state, mstate)); +#elif defined(__FreeBSD__) + /* + * On FreeBSD, we introduce compatibility to zonename by falling through + * into jailname. + */ + case DIF_VAR_JAILNAME: + if (!dtrace_priv_kernel(state)) + return (0); + + return (dtrace_dif_varstr( + (uintptr_t)curthread->t_procp->p_ucred->cr_prison->pr_name, + state, mstate)); + + case DIF_VAR_JID: + if (!dtrace_priv_kernel(state)) + return (0); + + return ((uint64_t)curthread->t_procp->p_ucred->cr_prison->pr_id); #else return (0); #endif Modified: head/sys/cddl/contrib/opensolaris/uts/common/sys/dtrace.h ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/sys/dtrace.h Fri Jan 12 18:44:28 2018 (r327887) +++ head/sys/cddl/contrib/opensolaris/uts/common/sys/dtrace.h Fri Jan 12 19:59:46 2018 (r327888) @@ -254,6 +254,8 @@ typedef enum dtrace_probespec { #define DIF_VAR_GID 0x011f /* process group ID */ #define DIF_VAR_ERRNO 0x0120 /* thread errno */ #define DIF_VAR_EXECARGS 0x0121 /* process arguments */ +#define DIF_VAR_JID 0x0122 /* process jail id */ +#define DIF_VAR_JAILNAME 0x0123 /* process jail name */ #ifndef illumos #define DIF_VAR_CPU 0x0200 _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
