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why nr-rrc dissectors are not called in pdcp-nr

When pdcp-nr packets are decoded, nr-rrc payload is not dissected. How can nr-rrc dissectors are triggered, as dl_dcch is spcecified in pdcp-nr tags?

Another question is how to tell pdcp-nr that no mac-i filed is attached? MAC-I presense tag is 0 byte?

#define PDCP_NR_MACI_PRES_TAG              0x0F
/* 0 byte */
pingguoyuan's avatar
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pingguoyuan
asked 2020-02-01 02:24:06 +0000
Guy Harris's avatar
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Guy Harris
updated 2020-02-01 08:42:36 +0000
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Hi,

1/ the code is ready to call the NR-RRC disssector but the lookup_rrc_dissector_handle() was never finished. I'm gonna fix that.

2/ to indicate that no MAC-I is present in a DRB, simply do not put the presence tag. Note that this is exclusively applicable to DRBs: SRB PDUs always have a MAC-I per the specification.

Pascal Quantin's avatar
5.8k
Pascal Quantin
answered 2020-02-01 08:13:11 +0000, updated 2020-02-01 08:13:24 +0000
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And calling NR RRC dissector is now implemented in Wireshark v3.3.0rc0-479-g4ef8ace610

Pascal Quantin's avatar Pascal Quantin (2020-02-01 10:02:40 +0000) edit

Thanks for your help. It works well.Great job!

pingguoyuan's avatar pingguoyuan (2020-02-01 12:07:39 +0000) edit
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