Re: [Mono-dev] Odbc and unsigned int
tirsdag 21 August 2007 skrev Mads Bondo Dydensborg: Hi there Hi everybody. Just trying to get help with the issue below. All help appreciated. Regards, Mads Is it correctly understood, that .NET Odbc does not support unsigned integers? This page would suggest that this is the case: http://msdn2.microsoft.com/en-us/library/bbw6zyha.aspx What I seem to experience is, that a column from my database that is unsigned int, returns the same type, as a column that is int. Is this to be expected, or a problem with mono? (I can not test this under Windows currently). Regards, Mads -- Med venlig hilsen/Regards Systemudvikler/Systemsdeveloper cand.scient.dat, Ph.d., Mads Bondo Dydensborg Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 44 86 77 34 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- Med venlig hilsen/Regards Systemudvikler/Systemsdeveloper cand.scient.dat, Ph.d., Mads Bondo Dydensborg Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 44 86 77 34 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Newbie Building mono - bootstrapping
I am trying to do a similar thing, although slightly differently. I am currently trying to make a package build script for Archlinux, hopefully ending in moonlight being installed. However, the build requires mcs and the libraries, I can download libmcs that will fulfil those dependencies, but that then leads to file conflicts when the package comes to being installed as some of the files are already there. I have tried to follow the bootstrap procedure but mcs returns: The assembly mscorlib.dll was not found or could not be loaded. It should have been installed in the `/usr/lib/mono/1.0/mscorlib.dll' directory. I have found the above mentioned file in the monolite package but as I cannot really install a dll outside the build enironment. César Lopéz Natarén wrote: Hello. So how do I bootstrap my clean Linux installation with mono? The release tarball should do the job. Read http://www.go-mono.com/archive/1.1.9/#install césar ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- View this message in context: http://www.nabble.com/-Mono-dev--Newbie-Building-mono---bootstrapping-tf359217.html#a13117779 Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Marshalling (Segmentation fault)
Hi All,
I have a 'C' structure which needs to be marshalled in MONO.
The 'C' struct is something like :
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
In the Mono side I have the following code :
Class A
{
[StructLayout(LayoutKind.Sequential,CharSet=CharSet.Unicode)]
Struct ImgStruct
{
Public uint bufflen;
IntPtr imgbuff;
}
[DllImport (lib.so)]
Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the 'C'
method which returns type struct
Public void A()
{
ImgStruct I;
I=gbuffergrab(); // ERROR
}
}
The code does not have compilation issues but while execution it gives
Segmentation Fault and exits abnormally ..
Any help is appreciated.
Thanks
Abir
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Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote: [DllImport (lib.so)] Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the 'C' method which returns type struct Please post the C prototype as well. Robert ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Marshalling (Segmentation fault)
The 'C' prototype :
#ifndef PICTURE_H
#define PICTURE_H
#include def.h
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
fgrab_struct fbuffergrab();
void fbufferflush(fgrab_struct fgbuffer);
#endif
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert Jordan
Sent: Thursday, October 11, 2007 4:32 PM
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote:
[DllImport (lib.so)]
Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the 'C'
method which returns type struct
Please post the C prototype as well.
Robert
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Re: [Mono-dev] Marshalling (Segmentation fault)
The C# version of this Structure would be best expressed as
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed IntPtr buffer[1000]
}
One question are you definitely wanting an array of 1000 pointers if
it is really 1000 bytes you are wanting then it would look like
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed byte buffer[1000]
}
Accessing this array on the C# side would then be through a bit of
unsafe code
Public void DoSomething( IntPtr _pValFromCPP )
{
unsafe {
fixed( FrameGrab* pFG = (FrameGrab*)_pValFromCPP.ToPointer()) {
IntPtr p = pFG-buffer[0];
// or
Byte b = pFG-buffer[0];
}
}
}
Russell
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Abir
Bhattacharya
Sent: 11 October 2007 12:09
To: 'Robert Jordan'; mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
The 'C' prototype :
#ifndef PICTURE_H
#define PICTURE_H
#include def.h
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
fgrab_struct fbuffergrab();
void fbufferflush(fgrab_struct fgbuffer);
#endif
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Jordan
Sent: Thursday, October 11, 2007 4:32 PM
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote:
[DllImport (lib.so)]
Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the
'C'
method which returns type struct
Please post the C prototype as well.
Robert
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Re: [Mono-dev] FIPS 140 cryptography
Hello Vladimir, On Fri, 2007-10-05 at 09:02 -0400, Vladimir Giszpenc wrote: Hi, The 100% managed implementation of Mono.Security is an elegant solution but the U.S. government may not be as trusting as I am. Are there any plans to get official FIPS 140-2 certification? Yes and no. Yes. It's been discussed a few times in the past and everyone agrees it would be nice to have. No. The short story is that it's a big, long and costly project and that there's been, so far, not many demand for it (wrt to other Mono features). This would go a long way to ensuring net worthiness. I totally agree :) While it's less elegant (imho) you can still use FIPS140 certified crypto in Mono by wrapping an existing toolkit (e.g. nss) in C# [1] and using this as a replacement [2] for Mono's crypto (split in both Mono.Security and mscorlib). [1] which is exactly what MS is doing on Windows: the FIPS140 crypto comes from CryptoAPI (managed stuff isn't certified) and wrapped in the class library. [2] it's possible to remap cryptographic algorithms using machine.config (so all mono tools and *correctly* written applications/libraries will be using your own crypto). Sebastien Thanks, Vladimir Giszpenc DSCI Contractor Supporting US Army CERDEC STCD IAD Tactical Network Protection Branch (732) 532-8959 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Marshalling (Segmentation fault)
[EMAIL PROTECTED] wrote:
The C# version of this Structure would be best expressed as
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed IntPtr buffer[1000]
}
This is usually bad portability-wise. LayoutKind.Sequential with
the system's ABI default packing should be used instead, unless
the struct really has a specific layout.
Robert
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Re: [Mono-dev] Marshalling (Segmentation fault)
Hi,
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
int bufferlength = 0;
unsigned char *buffer[1000];
extern SDL_mutex *mutex;
fgrab_struct gbuffergrab() {
fgrab_struct fgbuffer;
int index;
SDL_mutexP(mutex);
fgbuffer.bufferlength = bufferlength;
//fgbuffer.buffer = buffer;
for (index = 0; index bufferlength; index++) {
fgbuffer.buffer[index] = buffer[index];
}
bufferlength = 0;
SDL_mutexV(mutex);
return fgbuffer;
}
I don't see where you're allocating the buffer, so
I think that function simply doesn't work.
Are you sure you want unsigned char *buffer[1000]?
I guess it should be unsigned char buffer[1000].
Fix this first and the p/invoke will work as well.
Robert
Abir Bhattacharya wrote:
The 'C' prototype :
#ifndef PICTURE_H
#define PICTURE_H
#include def.h
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
fgrab_struct fbuffergrab();
void fbufferflush(fgrab_struct fgbuffer);
#endif
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert Jordan
Sent: Thursday, October 11, 2007 4:32 PM
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote:
[DllImport (lib.so)]
Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the 'C'
method which returns type struct
Please post the C prototype as well.
Robert
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Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote:
Hi,
Actually I have another 'C' File which allocates this buffer :
But your exposed function doesn't allocate any buffer:
fgrab_struct gbuffergrab() {
fgrab_struct fgbuffer;
int index;
SDL_mutexP(mutex);
fgbuffer.bufferlength = bufferlength;
//fgbuffer.buffer = buffer;
for (index = 0; index bufferlength; index++) {
fgbuffer.buffer[index] = buffer[index];
fgbuffer.buffer is NULL in this place.
Robert
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Re: [Mono-dev] Marshalling (Segmentation fault)
Hi,
Actually I have another 'C' File which allocates this buffer :
This captures allocates on a per frame basis.
void fcapture()
{
int fd;
struct video_mbuf mbuf;
char *buf0, *buf1/*, *buf2, *buf3*/;
int size;
//unsigned char *tmp;
struct video_mmap mm;
int frame;
fd = open(/dev/video0, O_RDWR);
if(fd = 0)
{
printf(open);
exit(1);
}
if(ioctl(fd, VIDIOCGMBUF, mbuf) 0)
{
perror(ioctl VIDIOCGMBUF);
exit(1);
}
printf(ioctl VIDIOCGMBUF: done\n);
//use mmap to get a pointer to each buffer.
buf0 = (unsigned char*) mmap(0, mbuf.size, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, 0);
buf0 = buf0 + mbuf.offsets[0];
buf1 = buf0 + mbuf.offsets[1];
size = (320 * 240 * 3) 1;
//tmp = (unsigned char*) malloc(size);
/*
buf2 = buf0 + mbuf.offsets[2];;
buf3 = buf0 + mbuf.offsets[4];;
*/
mm.height = 240;
mm.width = 320;
mm.format = VIDEO_PALETTE_YUV420P;
mm.frame = 0;
if(ioctl(fd, VIDIOCMCAPTURE, mm) 0)
{
perror(ioctl VIDIOCMCAPTURE 0);
exit(1);
}
printf(ioctl VIDIOCMCAPTURE 0: done\n);
while (1)
{
mm.height = 240;
mm.width = 320;
mm.format = VIDEO_PALETTE_YUV420P;
mm.frame = 1;
if(ioctl(fd, VIDIOCMCAPTURE, mm) 0)
{
perror(ioctl VIDIOCMCAPTURE 1);
exit(1);
}
printf(ioctl VIDIOCMCAPTURE 1: done\n);
frame = 0;
if(ioctl(fd, VIDIOCSYNC, frame) 0)
{
perror(ioctl VIDIOCSYNC 0);
exit(1);
}
printf(ioctl VIDIOCSYNC 0: done\n);
//memset(tmp, 0x00, size);
//memcpy(tmp, buf0, size);
//printf (%u %u %u %u\n, tmp[0], tmp[1], tmp[2], tmp[3]);
//writepicture(tmp, size);
SDL_mutexP(mutex);
buffer[bufferlength] = (unsigned char*) malloc(size);
memset(buffer[bufferlength], 0x00, size);
memcpy(buffer[bufferlength++], buf0, size);
SDL_mutexV(mutex);
mm.height = 240;
mm.width = 320;
mm.format = VIDEO_PALETTE_YUV420P;
mm.frame = 0;
if(ioctl(fd, VIDIOCMCAPTURE, mm) 0)
{
perror(ioctl VIDIOCMCAPTURE 0);
exit(1);
}
printf(ioctl VIDIOCMCAPTURE 0: done\n);
frame = 1;
if(ioctl(fd, VIDIOCSYNC, frame) 0)
{
perror(ioctl VIDIOCSYNC 1);
exit(1);
}
printf(ioctl VIDIOCSYNC 1: done\n);
//memset(tmp, 0x00, size);
//memcpy(tmp, buf1, size);
//printf (%u %u %u %u\n, tmp[0], tmp[1], tmp[2], tmp[3]);
//writepicture(tmp, size);
SDL_mutexP(mutex);
buffer[bufferlength] = (unsigned char*) malloc(size);
memset(buffer[bufferlength], 0x00, size);
memcpy(buffer[bufferlength++], buf0, size);
SDL_mutexV(mutex);
}
close(fd);
}
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert Jordan
Sent: Thursday, October 11, 2007 5:52 PM
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
Hi,
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
int bufferlength = 0;
unsigned char *buffer[1000];
extern SDL_mutex *mutex;
fgrab_struct gbuffergrab() {
fgrab_struct fgbuffer;
int index;
SDL_mutexP(mutex);
fgbuffer.bufferlength = bufferlength;
//fgbuffer.buffer = buffer;
for (index = 0; index bufferlength; index++) {
fgbuffer.buffer[index] = buffer[index];
}
bufferlength = 0;
SDL_mutexV(mutex);
return fgbuffer;
}
I don't see where you're allocating the buffer, so
I think that function simply doesn't work.
Are you sure you want unsigned char *buffer[1000]?
I guess it should be unsigned char buffer[1000].
Fix this first and the p/invoke will work as well.
Robert
Abir Bhattacharya wrote:
The 'C' prototype :
#ifndef PICTURE_H
#define PICTURE_H
#include def.h
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
fgrab_struct fbuffergrab();
void
Re: [Mono-dev] Marshalling (Segmentation fault)
You cannot have a fixed IntPtr.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 11, 2007 4:50 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; mono-devel-list@lists.ximian.com
Subject: RE: [Mono-dev] Marshalling (Segmentation fault)
The C# version of this Structure would be best expressed as
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed IntPtr buffer[1000]
}
One question are you definitely wanting an array of 1000 pointers if
it is really 1000 bytes you are wanting then it would look like
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed byte buffer[1000]
}
Accessing this array on the C# side would then be through a bit of
unsafe code
Public void DoSomething( IntPtr _pValFromCPP )
{
unsafe {
fixed( FrameGrab* pFG = (FrameGrab*)_pValFromCPP.ToPointer()) {
IntPtr p = pFG-buffer[0];
// or
Byte b = pFG-buffer[0];
}
}
}
Russell
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Abir
Bhattacharya
Sent: 11 October 2007 12:09
To: 'Robert Jordan'; mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
The 'C' prototype :
#ifndef PICTURE_H
#define PICTURE_H
#include def.h
struct fgrab {
int bufferlength;
unsigned char *buffer[1000];
} typedef fgrab_struct;
fgrab_struct fbuffergrab();
void fbufferflush(fgrab_struct fgbuffer);
#endif
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Jordan
Sent: Thursday, October 11, 2007 4:32 PM
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
Abir Bhattacharya wrote:
[DllImport (lib.so)]
Private static extern ImgStruct gbuffergrab(); // gbuffergrab is the
'C'
method which returns type struct
Please post the C prototype as well.
Robert
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Re: [Mono-dev] FIPS 140 cryptography
Sebastien, No. The short story is that it's a big, long and costly project and that there's been, so far, not many demand for it (wrt to other Mono features). I agree that there are more pressing needs, but it never hurts to voice your own so they are recognized. I am a big Mono proponent, but it is difficult to compete with Java on maturity of tools. While it's less elegant (imho) you can still use FIPS140 certified crypto in Mono by wrapping an existing toolkit (e.g. nss) in C# [1] and using this as a replacement [2] for Mono's crypto (split in both Mono.Security and mscorlib). The Java community has JSS. Would asking for a MonoSS be asking too much? That seems like a big project as well. This is not even what I am really looking for. I need SSH. I found the capability in SharpSSH, but in order for me to make certification labs happy, I need the encryption used in my SSH implementation to be FIPS 140 compliant. [1] which is exactly what MS is doing on Windows: the FIPS140 crypto comes from CryptoAPI (managed stuff isn't certified) and wrapped in the class library. [2] it's possible to remap cryptographic algorithms using machine.config (so all mono tools and *correctly* written applications/libraries will be using your own crypto). That is nice for Windows, but I am targeting Linux. I would love to point some config file at NSS. Is there any chance such a thing will happen? I am a little peon doing RD hoping to move the Army toward accepting Mono. Any help you can give me would be much appreciated! Many Thanks, Vladimir Giszpenc DSCI Contractor Supporting US Army CERDEC STCD IAD Tactical Network Protection Branch (732) 532-8959 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Marshalling (Segmentation fault)
True,...
In this case I was ripping an example I had that was using a union type
layout, which does need this type of arrangement... Apologies all round.
For simple structures C/C++ is pretty portable these days between
architectures, the main issue is 32bit/64bit and pointers (and any
alignment specific nastiness).
My main gripe with C# is not supporting union in a portable way (i.e.
you have to resort to LayoutKind.Explicit).
Russell
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Jordan
Sent: 11 October 2007 13:15
To: mono-devel-list@lists.ximian.com
Subject: Re: [Mono-dev] Marshalling (Segmentation fault)
[EMAIL PROTECTED] wrote:
The C# version of this Structure would be best expressed as
[StructLayout(LayoutKind.Explicit)]
unsafe struct FrameGrab
{
[FieldOffset(0)]
public int bufferlength;
[FieldOffset(4)]
Public fixed IntPtr buffer[1000]
}
This is usually bad portability-wise. LayoutKind.Sequential with
the system's ABI default packing should be used instead, unless
the struct really has a specific layout.
Robert
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Re: [Mono-dev] FIPS 140 cryptography
Hello Vladimir, On Thu, 2007-10-11 at 11:04 -0400, Vladimir Giszpenc wrote: Sebastien, No. The short story is that it's a big, long and costly project and that there's been, so far, not many demand for it (wrt to other Mono features). I agree that there are more pressing needs, but it never hurts to voice your own so they are recognized. Well I can't agree more with that ;-) If no one had asked before today we wouldn't even have considered it. I am a big Mono proponent, but it is difficult to compete with Java on maturity of tools. While it's less elegant (imho) you can still use FIPS140 certified crypto in Mono by wrapping an existing toolkit (e.g. nss) in C# [1] and using this as a replacement [2] for Mono's crypto (split in both Mono.Security and mscorlib). The Java community has JSS. Would asking for a MonoSS be asking too much? It depends from who you're asking ;-) Network Security Services for Java (JSS) is provided by Mozilla. So yes Mozilla *could* do something like this (not Mono-specific but for all .NET users) just like they provide the API for Java. However I don't think this (NSS) should ever become a direct(*) Mono goal(**). Mono itself has already too many things to complete to afford a duplicate effort (since we already offer the same features). (*) Someone in the Mono (or .NET) community may be interested in producing this. This is a reason (help alternatives) why Crimson (http://www.mono-project.com/Crimson) was started last year. Sadly it would seems that my offer to help people (rather than doing it myself) was quite enough to produce much code ;-) (**) certifying our own code for FIPS-140 is another story :) That seems like a big project as well. This is not even what I am really looking for. I need SSH. I found the capability in SharpSSH, but in order for me to make certification labs happy, I need the encryption used in my SSH implementation to be FIPS 140 compliant. Well as long as SharpSSH doesn't provide it's own crypto (totally or partially) it doesn't have to be certified. Which brings you back to finding certified cryptographic implementations (like NSS) available thru Mono. [1] which is exactly what MS is doing on Windows: the FIPS140 crypto comes from CryptoAPI (managed stuff isn't certified) and wrapped in the class library. [2] it's possible to remap cryptographic algorithms using machine.config (so all mono tools and *correctly* written applications/libraries will be using your own crypto). That is nice for Windows, but I am targeting Linux. I would love to point some config file at NSS. Is there any chance such a thing will happen? Well the config remapping stuff already works on Mono/Linux, so it's a matter of finding alternates cryptographic implementation that match your need (fips140 certified). Mono itself is ready to use it ;-) I am a little peon doing RD hoping to move the Army toward accepting Mono. Any help you can give me would be much appreciated! Besides NSS there are other FIPS140 certified libraries that could be wrapped to give the same end result. However I don't know any available on Linux that have .NET binding. Many Thanks, Vladimir Giszpenc DSCI Contractor Supporting US Army CERDEC STCD IAD Tactical Network Protection Branch (732) 532-8959 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] FIPS 140 cryptography
Hello, I have updated our FAQ with the details from this discussion. I encourage folks to maintain our FAQs updated when we come across information like this: http://www.mono-project.com/FAQ:_Security#FIPS_Certification Feel free to correct or fix it. Hello Vladimir, On Thu, 2007-10-11 at 11:04 -0400, Vladimir Giszpenc wrote: Sebastien, No. The short story is that it's a big, long and costly project and that there's been, so far, not many demand for it (wrt to other Mono features). I agree that there are more pressing needs, but it never hurts to voice your own so they are recognized. Well I can't agree more with that ;-) If no one had asked before today we wouldn't even have considered it. I am a big Mono proponent, but it is difficult to compete with Java on maturity of tools. While it's less elegant (imho) you can still use FIPS140 certified crypto in Mono by wrapping an existing toolkit (e.g. nss) in C# [1] and using this as a replacement [2] for Mono's crypto (split in both Mono.Security and mscorlib). The Java community has JSS. Would asking for a MonoSS be asking too much? It depends from who you're asking ;-) Network Security Services for Java (JSS) is provided by Mozilla. So yes Mozilla *could* do something like this (not Mono-specific but for all .NET users) just like they provide the API for Java. However I don't think this (NSS) should ever become a direct(*) Mono goal(**). Mono itself has already too many things to complete to afford a duplicate effort (since we already offer the same features). (*) Someone in the Mono (or .NET) community may be interested in producing this. This is a reason (help alternatives) why Crimson (http://www.mono-project.com/Crimson) was started last year. Sadly it would seems that my offer to help people (rather than doing it myself) was quite enough to produce much code ;-) (**) certifying our own code for FIPS-140 is another story :) That seems like a big project as well. This is not even what I am really looking for. I need SSH. I found the capability in SharpSSH, but in order for me to make certification labs happy, I need the encryption used in my SSH implementation to be FIPS 140 compliant. Well as long as SharpSSH doesn't provide it's own crypto (totally or partially) it doesn't have to be certified. Which brings you back to finding certified cryptographic implementations (like NSS) available thru Mono. [1] which is exactly what MS is doing on Windows: the FIPS140 crypto comes from CryptoAPI (managed stuff isn't certified) and wrapped in the class library. [2] it's possible to remap cryptographic algorithms using machine.config (so all mono tools and *correctly* written applications/libraries will be using your own crypto). That is nice for Windows, but I am targeting Linux. I would love to point some config file at NSS. Is there any chance such a thing will happen? Well the config remapping stuff already works on Mono/Linux, so it's a matter of finding alternates cryptographic implementation that match your need (fips140 certified). Mono itself is ready to use it ;-) I am a little peon doing RD hoping to move the Army toward accepting Mono. Any help you can give me would be much appreciated! Besides NSS there are other FIPS140 certified libraries that could be wrapped to give the same end result. However I don't know any available on Linux that have .NET binding. Many Thanks, Vladimir Giszpenc DSCI Contractor Supporting US Army CERDEC STCD IAD Tactical Network Protection Branch (732) 532-8959 ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] New profiler (work in progress)
excellent news ! I'm going to add support for this profiler to the MonoDevelop profiling addin as soon as possible. -- Ben On 10/11/07, Massimiliano Mantione [EMAIL PROTECTED] wrote: Hello, we decided to overhaul the current mono profiler. It is not a revolution, because the profiling API stays the same, just a reimplementation of the current default profiler. In the attached files you can find some documentation, and the work I've done so far. Note that you will need at least svn r87098, otherwise the needed events will not be called by the runtime. Status: Everything implemented is working, except the statistical profiler. Currently I have problems getting the jit info, I just commented the line so that all events appear to have hit unmanaged code. However, I still don't handle mapping of unmanaged function names, so the statistical profiler is useless for now. Moreover, I still don't implement parsing of arguments, so the flags are hardcoded into setup_user_options. Then, the reader program is still to be refined. And I sort of ported it to Windows, but never tested it there. Apart from that, the thing works, but it produces *huge* files. Running the bench.exe program in mono/mini generates almost one GB of data. The nice thing is that it works :-) Have fun, Massimiliano ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] New profiler (work in progress)
On Thu, 2007-10-11 at 17:27 -0400, Chris Morgan wrote: I'm not sure if you've ever used valgrind/kcachegrind but it might be useful to be able to output in that format to enable easier visualization of profiling data. As far as I know kcachegrind still has about the best visualization for profiling that I've seen and it would be useful to leverage a tool like it to provide easier analysis than reading through profiling text output. Yes, I have used kcachegrind, and I absolutely loved it :-) For now the priority is to be able to output files as small as possible, and with as little overhead as possible. Then, hintsomebody could contribute/hint an off line translator from our file format to kcachegrind's ;-) Another thing I would like is integrating oprofile support in this profiler. The oprofile team just created a branch which provides Java support, but the JIT support is vm-agnostic and it would be easy to make it support Mono. BTW, I just rerun the bench test enabling only the (broken) statistical profiler support, even if it does not provide meaningful data. This way the log file is small and the overhead ok. The log file was so huge because with all the flags enabled it was actually like a full trace... Ciao, Massi ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
