mirror of
https://github.com/waaraawa/ByteGrid.git
synced 2026-07-22 16:30:25 +00:00
43ae040047
- Add uniformRowHeight option to RenderOptions - Render bit grid (8 vertical lines) inside bitfield cells - Show bit numbers (7-0, MSB first) below byte numbers - Increase row height to 45px for rows with bitfields - Increase default cellWidth to 40px for readability - Add 6 new tests for bitfield visualization
81 lines
1.9 KiB
YAML
81 lines
1.9 KiB
YAML
name: IPv4 Header
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size: 20
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layout: 16
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fields:
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- offset: 0
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name: Version+IHL
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type: uint8_t
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description: "Version (4 bits) + Header Length (4 bits)"
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color: blue
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bitfields:
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- name: Version
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bits: "4-7"
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description: "IP version (4 for IPv4)"
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- name: IHL
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bits: "0-3"
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description: "Header length in 32-bit words"
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- offset: 1
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name: DSCP+ECN
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type: uint8_t
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description: "Differentiated Services Code Point + ECN"
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color: yellow
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bitfields:
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- name: DSCP
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bits: "2-7"
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description: "Differentiated Services"
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- name: ECN
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bits: "0-1"
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description: "Explicit Congestion Notification"
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- offset: 2-3
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name: TotalLength
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type: uint16_t
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description: "Total packet length"
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color: cyan
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- offset: 4-5
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name: Identification
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type: uint16_t
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description: "Packet identification"
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color: green
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- offset: 6-7
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name: Flags+FragOffset
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type: uint16_t
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description: "Flags (3 bits) + Fragment Offset (13 bits)"
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color: orange
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bitfields:
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- name: Reserved
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bits: "15"
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description: "Must be zero"
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- name: DF
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bits: "14"
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description: "Don't Fragment"
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- name: MF
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bits: "13"
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description: "More Fragments"
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- name: FragmentOffset
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bits: "0-12"
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description: "Fragment offset"
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- offset: 8
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name: TTL
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type: uint8_t
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description: "Time To Live"
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color: purple
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- offset: 9
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name: Protocol
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type: uint8_t
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description: "Protocol (6=TCP, 17=UDP)"
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color: mint
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- offset: 10-11
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name: Checksum
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type: uint16_t
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description: "Header checksum"
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color: pink
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- offset: 12-15
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name: SourceIP
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type: uint32_t
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description: "Source IP address"
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color: blue
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- offset: 16-19
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name: DestIP
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type: uint32_t
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description: "Destination IP address"
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color: cyan
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