Fixed server IP detection. Implemented TFTP file size request and connection setup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18895 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Marcus Overhagen
@@ -29,6 +29,10 @@
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.equ BOOTP_OPCODE_REQ, 1
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.equ BOOTP_OPCODE_REP, 2
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.equ scatchbuffer_addr_seg, 0x2000
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.equ scatchbuffer_addr_ofs, 0x0000
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.equ scatchbuffer_size, 15000
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.code16
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.text
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@@ -100,55 +104,167 @@ _start:
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movw $crlf, %si
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call puts
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movw $PXENV_PACKET_TYPE_CACHED_REPLY, %ax
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// movw $PXENV_PACKET_TYPE_DHCP_ACK, %ax
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movw %ax, s_PXENV_GET_CACHED_INFO_PacketType
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movw $300, %ax
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movw %ax, s_PXENV_GET_CACHED_INFO_BufferSize
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movl $cached_info, %eax
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movl %eax, s_PXENV_GET_CACHED_INFO_Buffer
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// determine client and server ips
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movw $PXENV_GET_CACHED_INFO, %bx
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movw $s_PXENV_GET_CACHED_INFO, %di
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movw $s_PXENV_GET_CACHED_INFO_3, %di
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lcall * pxenv_api
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test %ax, %ax
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jnz err_ip
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andl $0xffff, %eax
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// convert pointer to linear 32 bit address
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movl $s_PXENV_GET_CACHED_INFO_3_Buffer, %edx
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movzwl 2(%edx), %eax
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movzwl 0(%edx), %ebx
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shll $4, %eax
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addl %ebx, %eax
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movl %eax, s_PXENV_GET_CACHED_INFO_3_Buffer
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// print environment data pointer and size
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movw $envdata, %si
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call puts
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movl s_PXENV_GET_CACHED_INFO_3_Buffer, %eax
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call puthex32
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movw $length, %si
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call puts
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movw s_PXENV_GET_CACHED_INFO_3_BufferSize, %ax
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call puthex16
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movw $crlf, %si
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call puts
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// determine client and server IPs
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movl s_PXENV_GET_CACHED_INFO_3_Buffer, %ebx
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movl 16(%ebx), %eax
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movl %eax, client_ip
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movl 20(%ebx), %eax
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movl %eax, server_ip
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// print client and server IPs
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movw $ipmsg_1, %si
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call puts
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movl client_ip, %eax
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call puthex32
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movw $ipmsg_2, %si
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call puts
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movl server_ip, %eax
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call puthex32
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movw $crlf, %si
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call puts
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movw s_PXENV_GET_CACHED_INFO_Status, %ax
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andl $0xffff, %eax
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// handle DHCP options.....
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movw $PXENV_GET_CACHED_INFO, %bx
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movw $s_PXENV_GET_CACHED_INFO_2, %di
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lcall * pxenv_api
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test %ax, %ax
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jnz err_dhcp
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// convert pointer to linear 32 bit address
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movl $s_PXENV_GET_CACHED_INFO_2_Buffer, %edx
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movzwl 2(%edx), %eax
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movzwl 0(%edx), %ebx
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shll $4, %eax
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addl %ebx, %eax
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movl %eax, s_PXENV_GET_CACHED_INFO_2_Buffer
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// print dhcp data pointer and size
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movw $dhcpdata, %si
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call puts
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movl s_PXENV_GET_CACHED_INFO_2_Buffer, %eax
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call puthex32
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movw $length, %si
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call puts
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movw s_PXENV_GET_CACHED_INFO_2_BufferSize, %ax
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call puthex16
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movw $crlf, %si
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call puts
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// we could process the DHCP ack here, but we don't need options yet...
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// Print loading file
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movw $loading, %si
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call puts
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movw $s_PXENV_TFTP_OPEN_FileName, %si
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call puts
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movw $crlf, %si
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call puts
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// get file size
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movl server_ip, %eax
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movl %eax, s_PXENV_TFTP_GET_FSIZE_ServerIPAddress
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movw $PXENV_TFTP_GET_FSIZE, %bx
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movw $s_PXENV_TFTP_GET_FSIZE, %di
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lcall * pxenv_api
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test %ax, %ax
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jnz err_fsize
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movw s_PXENV_TFTP_GET_FSIZE_Status, %ax
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test %ax, %ax
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jnz err_fsize
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// print file size
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movw $fsizeis, %si
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call puts
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movl s_PXENV_TFTP_GET_FSIZE_FileSize, %eax
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call puthex32
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movw $crlf, %si
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call puts
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movl cached_info_cip, %eax
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call puthex32
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movw $crlf, %si
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call puts
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// open TFTP connection
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movl server_ip, %eax
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movl %eax, s_PXENV_TFTP_OPEN_ServerIPAddress
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movw $PXENV_TFTP_OPEN, %bx
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movw $s_PXENV_TFTP_OPEN, %di
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lcall * pxenv_api
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test %ax, %ax
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jnz err_load
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movw s_PXENV_TFTP_OPEN_Status, %ax
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test %ax, %ax
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jnz err_load
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movl cached_info_yip, %eax
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call puthex32
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movw $crlf, %si
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// print packet size
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movw $psizeis, %si
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call puts
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movl cached_info_sip, %eax
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call puthex32
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movw $crlf, %si
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call puts
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movl cached_info_gip, %eax
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call puthex32
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movw s_PXENV_TFTP_OPEN_PacketSize, %ax
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call puthex16
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movw $crlf, %si
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call puts
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loop:
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jmp loop
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// load data
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movw $dot, %si
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call puts
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// close TFTP connection
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// execute
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movw $executing, %si
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// call puts
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stop: hlt
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jmp stop
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err_dhcp:
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movw $dhcpfailed, %si
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call puts
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jmp stop
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err_ip:
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movw $ipfailed, %si
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call puts
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jmp stop
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err_fsize:
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movw $sizefailed, %si
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call puts
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jmp stop
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err_load:
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movw $loadfailed, %si
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call puts
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jmp stop
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puts: pushal
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_puts2: lodsb
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testb %al, %al
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@@ -228,7 +344,20 @@ unrealmsg: .asciz "Switch to unreal mode done\r\n"
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pxenvmsg: .asciz "PXENV+ data structure at "
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apimsg: .asciz "PXENV+ API entry point at "
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envdata: .asciz "Boot environment data at "
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dhcpdata: .asciz "DHCP options data at "
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ipfailed: .asciz "Error, can't determine IP address\r\n"
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dhcpfailed: .asciz "Error, can't determine DHCP options\r\n"
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apivermsg: .asciz "API version is "
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ipmsg_1: .asciz "My IP address is "
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ipmsg_2: .asciz ", server IP address is "
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length: .asciz ", length "
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loading: .asciz "Loading image file "
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fsizeis: .asciz "Image file size is "
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psizeis: .asciz "Packet size is "
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sizefailed: .asciz "\r\nCouldn't get image file size, loading failed\r\n"
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loadfailed: .asciz "\r\nLoading image file failed\r\n"
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executing: .asciz "\r\nExecuting stage 2 loader\r\n"
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colon: .asciz ":"
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dot: .asciz "."
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crlf: .asciz "\r\n"
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@@ -247,31 +376,40 @@ gdt_descriptor:
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pxenv_api: .long 0
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client_ip: .long 0
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server_ip: .long 0
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s_PXENV_GET_CACHED_INFO_2:
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s_PXENV_GET_CACHED_INFO_2_Status: .word 0
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s_PXENV_GET_CACHED_INFO_2_PacketType: .word 2
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s_PXENV_GET_CACHED_INFO_2_BufferSize: .word scatchbuffer_size
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s_PXENV_GET_CACHED_INFO_2_Buffer: .word scatchbuffer_addr_ofs
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.word scatchbuffer_addr_seg
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s_PXENV_GET_CACHED_INFO_2_BufferLimit: .word 0
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s_PXENV_GET_CACHED_INFO:
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s_PXENV_GET_CACHED_INFO_Status: .word 0
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s_PXENV_GET_CACHED_INFO_PacketType: .word 0
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s_PXENV_GET_CACHED_INFO_BufferSize: .word 0
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s_PXENV_GET_CACHED_INFO_Buffer: .long 0
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s_PXENV_GET_CACHED_INFO_BufferLimit: .word 0
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s_PXENV_GET_CACHED_INFO_3:
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s_PXENV_GET_CACHED_INFO_3_Status: .word 0
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s_PXENV_GET_CACHED_INFO_3_PacketType: .word 3
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s_PXENV_GET_CACHED_INFO_3_BufferSize: .word scatchbuffer_size
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s_PXENV_GET_CACHED_INFO_3_Buffer: .word scatchbuffer_addr_ofs
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.word scatchbuffer_addr_seg
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s_PXENV_GET_CACHED_INFO_3_BufferLimit: .word 0
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cached_info:
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cached_info_opcode: .byte 0
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cached_info_hardware: .byte 0
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cached_info_hardlen: .byte 0
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cached_info_gatehops: .byte 0
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cached_info_ident: .long 0
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cached_info_seconds: .word 0
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cached_info_flags: .word 0
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cached_info_cip: .long 0
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cached_info_yip: .long 0
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cached_info_sip: .long 0
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cached_info_gip: .long 0
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cached_info_mac_addr: .fill 16
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cached_info_server_name: .fill 64
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cached_info_bootfile: .fill 128
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cached_info_vendorspec: .fill 64
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s_PXENV_TFTP_OPEN:
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s_PXENV_TFTP_OPEN_Status: .word 0
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s_PXENV_TFTP_OPEN_ServerIPAddress: .long 0
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s_PXENV_TFTP_OPEN_GatewayIPAddress: .long 0
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s_PXENV_TFTP_OPEN_FileName: .asciz "haiku-pxe-image"
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.fill 112
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s_PXENV_TFTP_OPEN_TFTPPort: .word (69 << 8)
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s_PXENV_TFTP_OPEN_PacketSize: .word 1456
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s_PXENV_TFTP_GET_FSIZE:
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s_PXENV_TFTP_GET_FSIZE_Status: .word 0
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s_PXENV_TFTP_GET_FSIZE_ServerIPAddress: .long 0
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s_PXENV_TFTP_GET_FSIZE_GatewayIPAddress:.long 0
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s_PXENV_TFTP_GET_FSIZE_FileName: .asciz "haiku-pxe-image"
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.fill 112
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s_PXENV_TFTP_GET_FSIZE_FileSize: .long 0
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end:
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