Date: Fri, 2 Jun 2017 13:33:50 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r319493 - head/usr.bin/truss Message-ID: <201706021333.v52DXo79044142@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: jhb Date: Fri Jun 2 13:33:50 2017 New Revision: 319493 URL: https://svnweb.freebsd.org/changeset/base/319493 Log: Decode the arguments passed to __cap_rights_get() and cap_rights_limit(). Submitted by: tobik 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 Fri Jun 2 09:54:41 2017 (r319492) +++ head/usr.bin/truss/syscall.h Fri Jun 2 13:33:50 2017 (r319493) @@ -28,6 +28,7 @@ * Kevent -- a pointer to an array of struct kevents. Prints all elements. * Pathconf -- the 2nd argument of pathconf(). * Utrace -- utrace(2) buffer. + * CapRights -- a pointer to a cap_rights_t. Prints all set capabilities. * * In addition, the pointer types (String, Ptr) may have OUT masked in -- * this means that the data is set on *return* from the system call -- or @@ -47,7 +48,7 @@ enum Argtype { None = 1, Hex, Octal, Int, UInt, LongHe Sysarch, ExecArgs, ExecEnv, PipeFds, QuadHex, Utrace, IntArray, Pipe2, CapFcntlRights, Fadvice, FileFlags, Flockop, Getfsstatmode, Kldsymcmd, Kldunloadflags, Sizet, Madvice, Socklent, Sockprotocol, Sockoptlevel, - Sockoptname, Msgflags, + Sockoptname, Msgflags, CapRights, CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags, CloudABIFDStat, CloudABIFileStat, CloudABIFileType, Modified: head/usr.bin/truss/syscalls.c ============================================================================== --- head/usr.bin/truss/syscalls.c Fri Jun 2 09:54:41 2017 (r319492) +++ head/usr.bin/truss/syscalls.c Fri Jun 2 13:33:50 2017 (r319493) @@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$"); * arguments. */ +#include <sys/capsicum.h> #include <sys/types.h> #include <sys/event.h> #include <sys/ioccom.h> @@ -76,6 +77,8 @@ __FBSDID("$FreeBSD$"); */ static struct syscall decoded_syscalls[] = { /* Native ABI */ + { .name = "__cap_rights_get", .ret_type = 1, .nargs = 3, + .args = { { Int, 0 }, { Int, 1 }, { CapRights | OUT, 2 } } }, { .name = "__getcwd", .ret_type = 1, .nargs = 2, .args = { { Name | OUT, 0 }, { Int, 1 } } }, { .name = "_umtx_op", .ret_type = 1, .nargs = 5, @@ -96,6 +99,8 @@ static struct syscall decoded_syscalls[] = { .args = { { Int, 0 }, { CapFcntlRights | OUT, 1 } } }, { .name = "cap_fcntls_limit", .ret_type = 1, .nargs = 2, .args = { { Int, 0 }, { CapFcntlRights, 1 } } }, + { .name = "cap_rights_limit", .ret_type = 1, .nargs = 2, + .args = { { Int, 0 }, { CapRights, 1 } } }, { .name = "chdir", .ret_type = 1, .nargs = 1, .args = { { Name, 0 } } }, { .name = "chflags", .ret_type = 1, .nargs = 2, @@ -1976,6 +1981,18 @@ print_arg(struct syscall_args *sc, unsigned long *args case Msgflags: print_mask_arg(sysdecode_msg_flags, fp, args[sc->offset]); break; + case CapRights: { + cap_rights_t rights; + + if (get_struct(pid, (void *)args[sc->offset], &rights, + sizeof(rights)) != -1) { + fputs("{ ", fp); + sysdecode_cap_rights(fp, &rights); + fputs(" }", fp); + } else + fprintf(fp, "0x%lx", args[sc->offset]); + break; + } case CloudABIAdvice: fputs(xlookup(cloudabi_advice, args[sc->offset]), fp);
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201706021333.v52DXo79044142>