From 96dabdc9b0fbffbdf6fb7099f21924f4702d6f91 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 3 Sep 2006 02:04:25 -0400
Subject: Added uid, euid, gid, egid, pid and ppid parameters to a live
 process.

--HG--
extra : convert_revision : 2101be8000bcdaf683730cfc079b4b78e34365d0
---
 src/sim/process.cc | 14 +++++++++++++-
 src/sim/process.hh | 10 ++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

(limited to 'src/sim')

diff --git a/src/sim/process.cc b/src/sim/process.cc
index 081a25976..20f7fec2d 100644
--- a/src/sim/process.cc
+++ b/src/sim/process.cc
@@ -460,6 +460,12 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
     Param<string> output;
     VectorParam<string> env;
     SimObjectParam<System *> system;
+    Param<uint64_t> uid;
+    Param<uint64_t> euid;
+    Param<uint64_t> gid;
+    Param<uint64_t> egid;
+    Param<uint64_t> pid;
+    Param<uint64_t> ppid;
 
 END_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
 
@@ -471,7 +477,13 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(LiveProcess)
     INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"),
     INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"),
     INIT_PARAM(env, "environment settings"),
-    INIT_PARAM(system, "system")
+    INIT_PARAM(system, "system"),
+    INIT_PARAM(uid, "user id"),
+    INIT_PARAM(euid, "effective user id"),
+    INIT_PARAM(gid, "group id"),
+    INIT_PARAM(egid, "effective group id"),
+    INIT_PARAM(pid, "process id"),
+    INIT_PARAM(ppid, "parent process id")
 
 END_INIT_SIM_OBJECT_PARAMS(LiveProcess)
 
diff --git a/src/sim/process.hh b/src/sim/process.hh
index 763deb100..d64cc3cf1 100644
--- a/src/sim/process.hh
+++ b/src/sim/process.hh
@@ -75,6 +75,16 @@ class Process : public SimObject
     // number of CPUs (esxec contexts, really) assigned to this process.
     unsigned int numCpus() { return threadContexts.size(); }
 
+    // Id of the owner of the process
+    uint64_t uid;
+    uint64_t euid;
+    uint64_t gid;
+    uint64_t egid;
+
+    // pid of the process and it's parent
+    uint64_t pid;
+    uint64_t ppid;
+
     // record of blocked context
     struct WaitRec
     {
-- 
cgit v1.2.3


From b11018ca12ddd8557bddbadaf649253aa5fd8c47 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 3 Sep 2006 02:12:11 -0400
Subject: Made system calls use the uid, etc parameters from the live process.

--HG--
extra : convert_revision : 2aadb87b4602324423aadb903010f5b49fcef41b
---
 src/sim/syscall_emul.cc | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'src/sim')

diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index e72890612..6620d95e3 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -401,8 +401,8 @@ getpidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
     // fake_syscall mode, so there's no way for a process to know it's
     // not getting a unique value.
 
-    tc->setIntReg(SyscallPseudoReturnReg, 99);
-    return 100;
+    tc->setIntReg(SyscallPseudoReturnReg, process->ppid);
+    return process->pid;
 }
 
 
@@ -414,8 +414,8 @@ getuidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
     // simulation to be deterministic.
 
     // EUID goes in r20.
-    tc->setIntReg(SyscallPseudoReturnReg, 100); //EUID
-    return 100;		// UID
+    tc->setIntReg(SyscallPseudoReturnReg, process->euid); //EUID
+    return process->uid;		// UID
 }
 
 
@@ -424,8 +424,8 @@ getgidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
     // Get current group ID.  EGID goes in r20.
-    tc->setIntReg(SyscallPseudoReturnReg, 100); //EGID
-    return 100;
+    tc->setIntReg(SyscallPseudoReturnReg, process->egid); //EGID
+    return process->gid;
 }
 
 
@@ -446,43 +446,43 @@ getpidFunc(SyscallDesc *desc, int callnum, Process *process,
     // fake_syscall mode, so there's no way for a process to know it's
     // not getting a unique value.
 
-    tc->setIntReg(SyscallPseudoReturnReg, 99); //PID
-    return 100;
+    tc->setIntReg(SyscallPseudoReturnReg, process->ppid); //PID
+    return process->pid;
 }
 
 SyscallReturn
 getppidFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
-    return 99;
+    return process->ppid;
 }
 
 SyscallReturn
 getuidFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
-    return 100;		// UID
+    return process->uid;		// UID
 }
 
 SyscallReturn
 geteuidFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
-    return 100;		// UID
+    return process->euid;		// UID
 }
 
 SyscallReturn
 getgidFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
-    return 100;
+    return process->gid;
 }
 
 SyscallReturn
 getegidFunc(SyscallDesc *desc, int callnum, Process *process,
            ThreadContext *tc)
 {
-    return 100;
+    return process->egid;
 }
 
 
-- 
cgit v1.2.3