tkt

SCR2.1/ARM/TP16/printHW.s

@@ -0,0 +1,24 @@
+/*
+Lines enclosed here are comments
+A small program: prints "Hello World!"
+*/
+// From // to the end of this line is a comment: next are directives to the assembler
+.equ SYS_EXIT, 93
+.equ SYS_WRITE, 64
+.data // tells assembler to assemble the following in the data section
+msg: .asciz "Hello World!\n" //msg retains the address of the string
+.text // tells assembler to assemble the following
+// in the text (code) section
+.globl _start // _start is there where the program starts,
+// .globl makes it visible to the linker
+_start:
+mov x0,#1 // value 1 is placed in register x0
+adr x1,msg // the address retained by label msg is placed in register x1
+mov x2,#13
+mov w8, #SYS_WRITE // svc must find the syscall number in w8
+// and the syscall arguments in x0,x1,x2
+svc #0 // invoke syscall: displays on the screen
+mov x0, #0 // in x0 put the value you want to exit with
+mov w8,#SYS_EXIT
+svc #0
+.end

SCR2.1/ARM/TP16/solar-TP16-5-reponses.txt

@@ -0,0 +1,32 @@
+On commence le tp on faisant ssh 172.16.3.178
+
+1.
+on peut utiliser la commande uname -a
+ou
+On utilise la commande file /lib/systemd/* .
+
+/lib/systemd/systemd-user-sessions:           ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=0f2486b01f56eccc8508f57e5368a85596b5def8, for GNU/Linux 3.7.0, stripped
+/lib/systemd/systemd-veritysetup:             ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=490eef8732d10f68818f236f5ae07aac17d36f32, for GNU/Linux 3.7.0, stripped
+/lib/systemd/systemd-volatile-root:           ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=2527638aa270e6db3bdc5f0ca199da65450a120d, for GNU/Linux 3.7.0, stripped
+/lib/systemd/systemd-xdg-autostart-condition: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=35a2d9040992e606a16b0674c8ae1c602a308f78, for GNU/Linux 3.7.0, stripped
+
+Nous pouvons constater que tous le exécutables correspondants sont 64 bits, donc c'est un 64-bit OS
+
+2.
+On peut utilisé la commande lscpu .
+
+Nous pouvons voir si l'Architecture est aarch64
+
+Rappel :
+Le descripteur de fichier associé a :
+-> la sortie standard des erreurs est le numéro 2.
+-> la sortie standard des résultat est le numéro 1.
+-> l'entrée sandard est le numéro 0.
+
+Write ( (on met ici le descripteur de fichier qu'il faut) , buf,(nbr_doctets_a_partir_de_buf) );
+
+On peux utiliser la commande less /usr/include/asm-generic/unistd.h pour savoir quel est la sortie par exemple en fait /write on sait que c'est 64.
+
+j'utilise la commande as -gstabs -o printHW.o printfHW.s
+puis ld -O0 printHW.o
+

SCR2.1/ARM/TP17/#w-vs-x-and-extension.s#

@@ -0,0 +1,24 @@
++.equ SYS_EXIT, 93
+
+.data
+
+int:.quad 0x11223344aabbccdd
+int32:.word 0x887766ee
+
+.text
+.globl _start
+
+_start:
+adr x1,int
+ldr x0,[x1]
+
+adr x1,int32
+ldr w0,[x1]
+
+sxtw x1,w0
+
+mov w8,#SYS_EXIT
+mov x0,#0
+svc #0
+
+.end

SCR2.1/ARM/TP17/add-int.s

@@ -0,0 +1,24 @@
+.equ SYS_EXIT, 93
+
+.data
+
+int1: .quad 1
+int2: .quad 2
+
+.text
+.globl _start
+
+_start:
+
+adr x0,int1
+adr x1,int2
+ldr x2,[x0]
+ldr x3,[x1]
+
+add x4,x2,x3
+
+mov w8,#SYS_EXIT
+mov x0,#0
+svc #0
+
+.end

SCR2.1/ARM/TP17/add-int32.s

@@ -0,0 +1,24 @@
+.equ SYS_EXIT, 93
+
+.data
+
+int1: .word 1
+int2: .word 2
+
+.text
+.globl _start
+
+_start:
+
+adr x0,int1
+adr x1,int2
+ldr w2,[x0]
+ldr w3,[x1]
+
+add w4,w2,w3
+
+mov w8,#SYS_EXIT
+mov x0,#0
+svc #0
+
+.end

SCR2.1/ARM/TP17/adds-int32.s

@@ -0,0 +1,25 @@
+.equ SYS_EXIT, 93
+
+.data
+
+int1: .word 1
+int2: .word 2
+
+.text
+.globl _start
+
+_start:
+
+adr x0,int1
+adr x1,int2
+ldr w2,[x0]
+ldr w3,[x1]
+
+adds w4,w2,w3
+MRS x0,NZCV
+
+mov w8,#SYS_EXIT
+mov x0,#0
+svc #0
+
+.end

SCR2.1/ARM/TP17/solar-TP17-5-reponses.txt

@@ -0,0 +1,305 @@
+ssh 172.16.3.178
+
+
+1.
+as -gstabs -o w-vs-x-and-extension.o w-vs-x-and-extension.s
+ld -O0 w-vs-x-and-extension.o
+
+(gdb) l 14
+9	.globl _start
+10	
+11	_start:
+12	ldr x0,#int
+13	ldr w0,#int32
+14	mov w8,#SYS_EXIT
+15	mov x0,#0
+16	svc #0
+17	
+18	.end
+(gdb) b 12
+Breakpoint 1 at 0x4000b0: file w-vs-x-and-extension.s, line 12.
+(gdb) run
+Starting program: /export/home/an23/solar/SCR/SCR2.1/ARM/TP17/a.out 
+
+Breakpoint 1, _start () at w-vs-x-and-extension.s:12
+12	ldr x0,#int
+(gdb) i r x0 w0 w8
+x0             0x0                 0
+w0             0x0                 0
+w8             0x0                 0
+(gdb) step
+13	ldr w0,#int32
+(gdb) i r x0 w0 w8
+x0             0x11223344aabbccdd  1234605617868164317
+w0             0x11223344aabbccdd  1234605617868164317
+w8             0x0                 0
+
+
+2)
+
+(gdb) l 14
+9	.globl _start
+10	
+11	_start:
+12	adr x1,int
+13	ldr x0,[x1]
+14	
+15	adr x1,int32
+16	ldr w0,[x1]
+17	
+18	sxtw x1,w0
+(gdb) b 12
+Breakpoint 1 at 0x4000b0: file w-vs-x-and-extension.s, line 12.
+(gdb) i r w0 x0 x1
+The program has no registers now.
+(gdb) run
+Starting program: /export/home/an23/solar/SCR/SCR2.1/ARM/TP17/a.out 
+
+Breakpoint 1, _start () at w-vs-x-and-extension.s:12
+12	adr x1,int
+(gdb) i r w0 x0 x1
+w0             0x0                 0
+x0             0x0                 0
+x1             0x0                 0
+(gdb) s
+13	ldr x0,[x1]
+(gdb) i r w0 x0 x1
+w0             0x0                 0
+x0             0x0                 0
+x1             0x4100d0            4260048
+(gdb) s
+15	adr x1,int32
+(gdb) i r w0 x0 x1
+w0             0x11223344aabbccdd  1234605617868164317
+x0             0x11223344aabbccdd  1234605617868164317
+x1             0x4100d0            4260048
+(gdb) s
+16	ldr w0,[x1]
+(gdb) i r w0 x0 x1
+w0             0x11223344aabbccdd  1234605617868164317
+x0             0x11223344aabbccdd  1234605617868164317
+x1             0x4100d8            4260056
+(gdb) s
+18	sxtw x1,w0
+(gdb) i r w0 x0 x1
+w0             0x887766ee          2289526510
+x0             0x887766ee          2289526510
+x1             0x4100d8            4260056
+(gdb) 
+
+
+
+II)
+
+
+1)
+
+(gdb) l  
+1	.equ SYS_EXIT, 93
+2	
+3	.data
+4	
+5	int1: .quad 1
+6	int2: .quad 2
+7	
+8	.text
+9	.globl _start
+10	
+(gdb) b 9
+Breakpoint 1 at 0x4000b0: file add-int.s, line 13.
+(gdb) run
+Starting program: /export/home/an23/solar/SCR/SCR2.1/ARM/TP17/a.out 
+
+Breakpoint 1, _start () at add-int.s:13
+13	adr x0,int1
+(gdb) i r w x0 x1 x2 x3 x4
+Invalid register `w'
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x0                 0
+x1             0x0                 0
+x2             0x0                 0
+x3             0x0                 0
+x4             0x0                 0
+(gdb) s
+14	adr x1,int2
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x4100d0            4260048
+x1             0x0                 0
+x2             0x0                 0
+x3             0x0                 0
+x4             0x0                 0
+(gdb) s
+15	ldr x2,[x0]
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x4100d0            4260048
+x1             0x4100d8            4260056
+x2             0x0                 0
+x3             0x0                 0
+x4             0x0                 0
+(gdb) s
+16	ldr x3,[x1]
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x4100d0            4260048
+x1             0x4100d8            4260056
+x2             0x1                 1
+x3             0x0                 0
+x4             0x0                 0
+(gdb) s
+18	add x4,x2,x3
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x4100d0            4260048
+x1             0x4100d8            4260056
+x2             0x1                 1
+x3             0x2                 2
+x4             0x0                 0
+(gdb) s
+20	mov w8,#SYS_EXIT
+(gdb) i r  x0 x1 x2 x3 x4
+x0             0x4100d0            4260048
+x1             0x4100d8            4260056
+x2             0x1                 1
+x3             0x2                 2
+x4             0x3                 3
+
+
+2.
+
+(gdb) l
+1	.equ SYS_EXIT, 93
+2	
+3	.data
+4	
+5	int1: .word 1
+6	int2: .word 2
+7	
+8	.text
+9	.globl _start
+10	
+(gdb) b 9
+Breakpoint 1 at 0x4000b0: file add-int32.s, line 13.
+(gdb) i r w4 w2 w3
+The program has no registers now.
+(gdb) run
+Starting program: /export/home/an23/solar/SCR/SCR2.1/ARM/TP17/a.out 
+
+Breakpoint 1, _start () at add-int32.s:13
+13	adr x0,int1
+(gdb) i r w4 w2 w3
+w4             0x0                 0
+w2             0x0                 0
+w3             0x0                 0
+(gdb) s
+14	adr x1,int2
+(gdb) i r w4 w2 w3
+w4             0x0                 0
+w2             0x0                 0
+w3             0x0                 0
+(gdb) i r w4 w2 w3s
+w4             0x0                 0
+w2             0x0                 0
+Invalid register `w3s'
+(gdb) s
+15	ldr w2,[x0]
+(gdb) i r w4 w2 w3s
+w4             0x0                 0
+w2             0x0                 0
+Invalid register `w3s'
+(gdb) i r w4 w2 w3 
+w4             0x0                 0
+w2             0x0                 0
+w3             0x0                 0
+(gdb) s
+16	ldr w3,[x1]
+(gdb) i r w4 w2 w3 
+w4             0x0                 0
+w2             0x1                 1
+w3             0x0                 0
+(gdb) s && i r w4 w2 w3
+A syntax error in expression, near `&& i r w4 w2 w3'.
+(gdb) s
+18	add w4,w2,w3
+(gdb) i r w4 w2 w3 
+w4             0x0                 0
+w2             0x1                 1
+w3             0x2                 2
+(gdb) s
+20	mov w8,#SYS_EXIT
+(gdb) i r w4 w2 w3 
+w4             0x3                 3
+w2             0x1                 1
+w3             0x2                 2
+
+
+3)
+
+(gdb) l
+1	.equ SYS_EXIT, 93
+2	
+3	.data
+4	
+5	int1: .word 1
+6	int2: .word 2
+7	
+8	.text
+9	.globl _start
+10	
+(gdb) b 9
+Breakpoint 1 at 0x4000b0: file adds-int32.s, line 13.
+(gdb) s
+The program is not being run.
+(gdb) run
+Starting program: /export/home/an23/solar/SCR/SCR2.1/ARM/TP17/a.out 
+
+Breakpoint 1, _start () at adds-int32.s:13
+13	adr x0,int1
+(gdb) i r w3 w2 w1 x0
+w3             0x0                 0
+w2             0x0                 0
+w1             0x0                 0
+x0             0x0                 0
+(gdb) s
+14	adr x1,int2
+(gdb) i r w3 w2 w1 x0
+w3             0x0                 0
+w2             0x0                 0
+w1             0x0                 0
+x0             0x4100d4            4260052
+(gdb) s
+15	ldr w2,[x0]
+(gdb) s
+16	ldr w3,[x1]
+(gdb) s
+18	adds w4,w2,w3
+(gdb) i r w3 w2 w1 x0
+w3             0x2                 2
+w2             0x1                 1
+w1             0x4100d8            4260056
+x0             0x4100d4            4260052
+(gdb) s
+19	MRS x0,NZCV
+(gdb) i r w3 w2 w1 x0
+w3             0x2                 2
+w2             0x1                 1
+w1             0x4100d8            4260056
+x0             0x4100d4            4260052
+(gdb) s
+21	mov w8,#SYS_EXIT
+(gdb) i r w3 w2 w1 x0
+w3             0x2                 2
+w2             0x1                 1
+w1             0x4100d8            4260056
+x0             0x0                 0
+(gdb) i r w3 w2 w1 x0 w4
+w3             0x2                 2
+w2             0x1                 1
+w1             0x4100d8            4260056
+x0             0x0                 0
+w4             0x3                 3
+
+
+
+
+
+
+
+

SCR2.1/ARM/TP17/w-vs-x-and-extension.s

@@ -0,0 +1,24 @@
+.equ SYS_EXIT, 93
+
+.data
+
+int:.quad 0x11223344aabbccdd
+int32:.word 0x887766ee
+
+.text
+.globl _start
+
+_start:
+adr x1,int
+ldr x0,[x1]
+
+adr x1,int32
+ldr w0,[x1]
+
+sxtw x1,w0
+
+mov w8,#SYS_EXIT
+mov x0,#0
+svc #0
+
+.end

SCR2.1/TP15/solar-5-TP15-reponses.txt

@@ -85,6 +85,23 @@ Le serveur a l'authorité sur le domain quand on a le aa si nous n'avons pas de
 
 Le temps de vie (TTL) est de 64 cela permet de ne pas avoit de paquet zombie, tournant à l'infini dans le réseaux.
 
+7)
+
+tcpdump -i eno1 -vvv -l -f "port 53" | tee tcpdump.txt
+
+
+
 III)
 
+1)
 
+Le TTL jusqu'a vintage.com est de 60
+
+
+; ANSWER SECTION:
+vintage.com.		60	IN	A	86.105.245.69
+
+Puis on constate que le dig 1 seconde a près a perdu 1 de TTL.
+
+; ANSWER SECTION:
+vintage.com.		59	IN	A	86.105.245.69

SCR2.1/TP16/Reponses-tp16.txt

@@ -1,11 +0,0 @@
-ssh 172.16.3.170
-
-lscpu
-less /proc/cpuinfo
-1.
-
-le système d'exploitation est 64 bits.
-
-2.
-aarch64
-CPU architectuer:8