From owner-svn-src-all@freebsd.org Wed Sep 18 16:15:06 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1420712260F; Wed, 18 Sep 2019 16:15:06 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46YQ6x6r8pz4Vvh; Wed, 18 Sep 2019 16:15:05 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CE09B277BC; Wed, 18 Sep 2019 16:15:05 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x8IGF5UN019376; Wed, 18 Sep 2019 16:15:05 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x8IGF5lk019374; Wed, 18 Sep 2019 16:15:05 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201909181615.x8IGF5lk019374@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Wed, 18 Sep 2019 16:15:05 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r352488 - head/usr.bin/truss X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: head/usr.bin/truss X-SVN-Commit-Revision: 352488 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Sep 2019 16:15:06 -0000 Author: kib Date: Wed Sep 18 16:15:05 2019 New Revision: 352488 URL: https://svnweb.freebsd.org/changeset/base/352488 Log: truss: decode sysctl names. Submitted by: Pawel Biernacki MFC after: 1 week Differential revision: https://reviews.freebsd.org/D21688 Modified: head/usr.bin/truss/syscall.h head/usr.bin/truss/syscalls.c Modified: head/usr.bin/truss/syscall.h ============================================================================== --- head/usr.bin/truss/syscall.h Wed Sep 18 16:13:50 2019 (r352487) +++ head/usr.bin/truss/syscall.h Wed Sep 18 16:15:05 2019 (r352488) @@ -131,6 +131,7 @@ enum Argtype { Sockprotocol, Socktype, Sysarch, + Sysctl, Umtxop, Waitoptions, Whence, Modified: head/usr.bin/truss/syscalls.c ============================================================================== --- head/usr.bin/truss/syscalls.c Wed Sep 18 16:13:50 2019 (r352487) +++ head/usr.bin/truss/syscalls.c Wed Sep 18 16:15:05 2019 (r352488) @@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$"); #include #define _WANT_FREEBSD11_STAT #include +#include #include #include #include @@ -506,6 +507,12 @@ static struct syscall decoded_syscalls[] = { .args = { { Name, 0 }, { Atfd, 1 }, { Name, 2 } } }, { .name = "sysarch", .ret_type = 1, .nargs = 2, .args = { { Sysarch, 0 }, { Ptr, 1 } } }, + { .name = "__sysctl", .ret_type = 1, .nargs = 6, + .args = { { Sysctl, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, + { Ptr, 4 }, { Sizet, 5 } } }, + { .name = "__sysctlbyname", .ret_type = 1, .nargs = 6, + .args = { { Name, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, + { Ptr, 4}, { Sizet, 5 } } }, { .name = "thr_kill", .ret_type = 1, .nargs = 2, .args = { { Long, 0 }, { Signal, 1 } } }, { .name = "thr_self", .ret_type = 1, .nargs = 1, @@ -1551,6 +1558,15 @@ print_cmsgs(FILE *fp, pid_t pid, bool receive, struct free(cmsgbuf); } +static void +print_sysctl_oid(FILE *fp, int *oid, int len) +{ + int i; + + for (i = 0; i < len; i++) + fprintf(fp, ".%d", oid[i]); +} + /* * Converts a syscall argument into a string. Said string is * allocated via malloc(), so needs to be free()'d. sc is @@ -2267,6 +2283,62 @@ print_arg(struct syscall_args *sc, unsigned long *args print_integer_arg(sysdecode_sysarch_number, fp, args[sc->offset]); break; + case Sysctl: { + char name[BUFSIZ]; + int oid[CTL_MAXNAME + 2], qoid[CTL_MAXNAME + 2]; + size_t i; + int len; + + memset(name, 0, sizeof(name)); + len = args[sc->offset + 1]; + if (get_struct(pid, (void *)args[sc->offset], oid, + len * sizeof(oid[0])) != -1) { + fprintf(fp, "\""); + if (oid[0] == CTL_SYSCTL) { + fprintf(fp, "sysctl."); + switch (oid[1]) { + case CTL_SYSCTL_DEBUG: + fprintf(fp, "debug"); + break; + case CTL_SYSCTL_NAME: + fprintf(fp, "name"); + print_sysctl_oid(fp, oid + 2, len - 2); + break; + case CTL_SYSCTL_NEXT: + fprintf(fp, "next"); + break; + case CTL_SYSCTL_NAME2OID: + fprintf(fp, "name2oid"); + break; + case CTL_SYSCTL_OIDFMT: + fprintf(fp, "oidfmt"); + print_sysctl_oid(fp, oid + 2, len - 2); + break; + case CTL_SYSCTL_OIDDESCR: + fprintf(fp, "oiddescr"); + print_sysctl_oid(fp, oid + 2, len - 2); + break; + case CTL_SYSCTL_OIDLABEL: + fprintf(fp, "oidlabel"); + print_sysctl_oid(fp, oid + 2, len - 2); + break; + default: + print_sysctl_oid(fp, oid + 1, len - 1); + } + } else { + qoid[0] = CTL_SYSCTL; + qoid[1] = CTL_SYSCTL_NAME; + memcpy(qoid + 2, oid, len * sizeof(int)); + i = sizeof(name); + if (sysctl(qoid, len + 2, name, &i, 0, 0) == -1) + print_sysctl_oid(fp, qoid + 2, len); + else + fprintf(fp, "%s", name); + } + fprintf(fp, "\""); + } + break; + } case PipeFds: /* * The pipe() system call in the kernel returns its