diff options
author | Harald Welte <laforge@gnumonks.org> | 2018-03-12 15:01:23 +0100 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2018-04-18 23:23:22 +0200 |
commit | d879bd9aa0edd4b22cf26d245b56dadf2efa14de (patch) | |
tree | 2e1cc361f668e2f16994d5c123b3ee48bc66ad01 /library | |
parent | 2d86affc8cbff74dd71f0467388608cc78fafa95 (diff) |
LAPDm: Re-structure: Merge Frame type A+B which are really the same
A is B with zero-length payload. No need to separate them.
Change-Id: I7b3079899f42a61d67be03e3a17346af80d7b3be
Diffstat (limited to 'library')
-rw-r--r-- | library/LAPDm_RAW_PT.ttcn | 2 | ||||
-rw-r--r-- | library/LAPDm_Types.ttcn | 88 |
2 files changed, 42 insertions, 48 deletions
diff --git a/library/LAPDm_RAW_PT.ttcn b/library/LAPDm_RAW_PT.ttcn index d6d3be4c..bdfc50bf 100644 --- a/library/LAPDm_RAW_PT.ttcn +++ b/library/LAPDm_RAW_PT.ttcn @@ -433,7 +433,7 @@ module LAPDm_RAW_PT { lpd.sacch := false; } lpd.sapi := dl.dl_info.link_id.sapi; - lpd.lapdm.b := dec_LapdmFrameB(dl.payload.data_ind.payload); + lpd.lapdm.ab := dec_LapdmFrameAB(dl.payload.data_ind.payload); LAPDM_SP.send(lpd); } diff --git a/library/LAPDm_Types.ttcn b/library/LAPDm_Types.ttcn index 98f69564..91f55fab 100644 --- a/library/LAPDm_Types.ttcn +++ b/library/LAPDm_Types.ttcn @@ -1,5 +1,5 @@ /* LAPDm definitiona according to 3GPP TS 44.006 */ -/* (C) 2017 bh Harald Welte <laforge@gnumonks.org> */ +/* (C) 2017-2018 bh Harald Welte <laforge@gnumonks.org> */ module LAPDm_Types { import from General_Types all; @@ -10,18 +10,6 @@ module LAPDm_Types { type BIT3 LapdmUBits; type BIT2 LapdmU2Bits; - type record LapdmLengthIndicator { - uint6_t len, - boolean m, - uint1_t el - } with { variant "FIELDORDER(msb)" }; - - template LapdmLengthIndicator t_LapdmLengthIndicator(template uint6_t len, boolean m := false) := { - len := len, - m := m, - el := 1 - }; - /* TS 44.006 Figure 4 */ type record LapdmAddressField { BIT1 spare, @@ -39,6 +27,14 @@ module LAPDm_Types { ea := true }; + template (value) LapdmAddressField ts_LapdmAddr(LapdmSapi sapi, boolean c_r) := { + spare := '0'B, + lpd := 0, + sapi := sapi, + c_r := c_r, + ea := true + }; + type record LapdmCtrlI { BIT1 spare ('0'B), uint3_t n_s, @@ -74,50 +70,64 @@ module LAPDm_Types { /* TS 44.006 Table 4 */ - template LapdmCtrl t_LapdmCtrlS := { + template LapdmCtrl tr_LapdmCtrlS := { s := { spare := '01'B, s := ?, p_f := ?, n_r := ? } }; - template LapdmCtrl t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlU := { u := { spare := '11'B, u2 := ?, p_f := ?, u := ? } }; /* TS 44.006 Table 4 */ - template LapdmCtrl t_LapdmCtrlI(template uint3_t nr, template uint3_t ns, template boolean p) := { + template LapdmCtrl tr_LapdmCtrlI(template uint3_t nr, template uint3_t ns, template boolean p) := { i := { spare := '0'B, n_s := ns, p := p, n_r := nr } }; - template LapdmCtrl t_LapdmCtrlRR(template uint3_t nr, template boolean pf) modifies t_LapdmCtrlS := { + template LapdmCtrl tr_LapdmCtrlRR(template uint3_t nr, template boolean pf) modifies tr_LapdmCtrlS := { s := { s:= '00'B, p_f := pf, n_r := nr } }; - template LapdmCtrl t_LapdmCtrlRNR(template uint3_t nr, template boolean pf) modifies t_LapdmCtrlS := { + template LapdmCtrl tr_LapdmCtrlRNR(template uint3_t nr, template boolean pf) modifies tr_LapdmCtrlS := { s := { s:= '01'B, p_f := pf, n_r := nr } }; - template LapdmCtrl t_LapdmCtrlREJ(template uint3_t nr, template boolean pf) modifies t_LapdmCtrlS := { + template LapdmCtrl tr_LapdmCtrlREJ(template uint3_t nr, template boolean pf) modifies tr_LapdmCtrlS := { s := { s:= '10'B, p_f := pf, n_r := nr } }; - template LapdmCtrl t_LapdmCtrlSABM(template boolean p) modifies t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlSABM(template boolean p) modifies tr_LapdmCtrlU := { u := { u2 := '11'B, p_f := p, u := '001'B } }; + template (value) LapdmCtrl ts_LapdmCtrlSABM(boolean p) := { + u := { spare := '11'B, u2 := '11'B, p_f := p, u := '001'B } + }; - template LapdmCtrl t_LapdmCtrlDM(template boolean f) modifies t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlDM(template boolean f) modifies tr_LapdmCtrlU := { u := { u2 := '11'B, p_f := f, u := '000'B } }; - template LapdmCtrl t_LapdmCtrlUI(template boolean p) modifies t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlUI(template boolean p) modifies tr_LapdmCtrlU := { u := { u2 := '00'B, p_f := p, u := '000'B } }; + template (value) LapdmCtrl ts_LapdmCtrlUI(boolean p) := { + u := { spare := '11'B, u2 := '00'B, p_f := p, u := '000'B } + }; - template LapdmCtrl t_LapdmCtrlDISC(template boolean p) modifies t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlDISC(template boolean p) modifies tr_LapdmCtrlU := { u := { u2 := '00'B, p_f := p, u := '010'B } }; + template LapdmCtrl ts_LapdmCtrlDISC(boolean p) := { + u := { spare := '11'B, u2 := '00'B, p_f := p, u := '010'B } + }; - template LapdmCtrl t_LapdmCtrlUA(template boolean f) modifies t_LapdmCtrlU := { + template LapdmCtrl tr_LapdmCtrlUA(template boolean f) modifies tr_LapdmCtrlU := { u := { u2 := '00'B, p_f := f, u := '011'B } }; + template (value) LapdmCtrl ts_LapdmCtrlUA(boolean f) := { + u := { spare := '11'B, u2 := '00'B, p_f := f, u := '011'B } + }; + + external function dec_LapdmAddressField(in octetstring stream) return LapdmAddressField with { extension "prototype(convert) decode(RAW)" }; @@ -128,21 +138,6 @@ module LAPDm_Types { external function dec_LapdmCtrlU(in octetstring stream) return LapdmCtrlU with { extension "prototype(convert) decode(RAW)" }; - external function dec_LapdmLengthIndicator(in octetstring stream) return LapdmLengthIndicator - with { extension "prototype(convert) decode(RAW)" }; - - /* Format A is used on DCCHs for frames where there is no information field */ - type record LapdmFrameA { - LapdmAddressField addr, - LapdmCtrl ctrl, - LapdmLengthIndicator len - } with { variant "" }; - - external function enc_LapdmFrameA(in LapdmFrameA si) return octetstring - with { extension "prototype(convert) encode(RAW)" }; - external function dec_LapdmFrameA(in octetstring stream) return LapdmFrameA - with { extension "prototype(convert) decode(RAW)" }; - /* Formats B, Bter and B4 are used on DCCHs for frames containing an information field: /* - format Bter is used on request of higher layers if and only if short L2 header type 1 is * supported and a UI command is to be transmitted on SAPI 0 */ @@ -151,19 +146,19 @@ module LAPDm_Types { /* Format Bbis is used only on BCCH, PCH, NCH, and AGCH. /* Format B */ - type record LapdmFrameB { + type record LapdmFrameAB { LapdmAddressField addr, LapdmCtrl ctrl, - uint6_t len, + uint6_t len, boolean m, - uint1_t el (1), - octetstring payload + uint1_t el, + octetstring payload /* zero-length in Frame A */ } with { variant (len) "LENGTHTO(payload)" variant "FIELDORDER(msb)" }; - external function enc_LapdmFrameB(in LapdmFrameB si) return octetstring + external function enc_LapdmFrameAB(in LapdmFrameAB si) return octetstring with { extension "prototype(convert) encode(RAW)" }; - external function dec_LapdmFrameB(in octetstring stream) return LapdmFrameB + external function dec_LapdmFrameAB(in octetstring stream) return LapdmFrameAB with { extension "prototype(convert) decode(RAW)" }; /* Format B4 */ @@ -188,8 +183,7 @@ module LAPDm_Types { with { extension "prototype(convert) decode(RAW)" }; type union LapdmFrame { - LapdmFrameA a, - LapdmFrameB b, + LapdmFrameAB ab, LapdmFrameBbis bbis, LapdmFrameB4 b4 } with { variant "" }; |