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authorHarald Welte <laforge@gnumonks.org>2018-03-12 15:01:23 +0100
committerHarald Welte <laforge@gnumonks.org>2018-04-18 23:23:22 +0200
commitd879bd9aa0edd4b22cf26d245b56dadf2efa14de (patch)
tree2e1cc361f668e2f16994d5c123b3ee48bc66ad01
parent2d86affc8cbff74dd71f0467388608cc78fafa95 (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
-rw-r--r--bts/BTS_Tests.ttcn8
-rw-r--r--lapdm/L1CTL_Test.ttcn38
-rw-r--r--library/LAPDm_RAW_PT.ttcn2
-rw-r--r--library/LAPDm_Types.ttcn88
4 files changed, 65 insertions, 71 deletions
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 6cb20c3..f820cf4 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -1068,9 +1068,9 @@ template LapdmAddressField ts_LapdmAddr(LapdmSapi sapi, boolean c_r) := {
ea := true
}
-template LapdmFrameB ts_LAPDm_B(LapdmSapi sapi, boolean c_r, boolean p, octetstring pl) := {
+template LapdmFrameAB ts_LAPDm_AB(LapdmSapi sapi, boolean c_r, boolean p, octetstring pl) := {
addr := ts_LapdmAddr(sapi, c_r),
- ctrl := t_LapdmCtrlUI(p),
+ ctrl := ts_LapdmCtrlUI(p),
len := 0, /* overwritten */
m := false,
el := 1,
@@ -1083,9 +1083,9 @@ altstep as_l1_sacch() runs on ConnHdlr {
[] L1CTL.receive(tr_L1CTL_DATA_IND(g_chan_nr, tr_RslLinkID_SACCH(?))) -> value l1_dl {
log("SACCH received: ", l1_dl.payload.data_ind.payload);
var GsmRrL3Message meas_rep := valueof(ts_MEAS_REP(true, 23, 23, 0, 0, omit));
- var LapdmFrameB lb := valueof(ts_LAPDm_B(0, false, false, enc_GsmRrL3Message(meas_rep)));
+ var LapdmFrameAB lb := valueof(ts_LAPDm_AB(0, false, false, enc_GsmRrL3Message(meas_rep)));
log("LAPDm: ", lb);
- var octetstring pl := '0000'O & enc_LapdmFrameB(lb);
+ var octetstring pl := '0000'O & enc_LapdmFrameAB(lb);
L1CTL.send(ts_L1CTL_DATA_REQ(g_chan_nr, ts_RslLinkID_SACCH(0), pl));
repeat;
}
diff --git a/lapdm/L1CTL_Test.ttcn b/lapdm/L1CTL_Test.ttcn
index 98dc43b..97704ac 100644
--- a/lapdm/L1CTL_Test.ttcn
+++ b/lapdm/L1CTL_Test.ttcn
@@ -45,9 +45,9 @@ module L1CTL_Test {
}
/* template for a valid SABM frame */
template LapdmFrame LAPDm_B_SABM(template GsmSapi sapi, octetstring payload) := {
- b := {
+ ab := {
addr := tr_LapdmAddr(sapi, false),
- ctrl := t_LapdmCtrlSABM(true),
+ ctrl := tr_LapdmCtrlSABM(true),
len := lengthof(payload),
m := false,
el := 1,
@@ -57,9 +57,9 @@ module L1CTL_Test {
/* template for a valid UA frame */
template LapdmFrame tr_LAPDm_B_UA(template GsmSapi sapi, template octetstring payload) := {
- b := {
+ ab := {
addr := tr_LapdmAddr(sapi, false),
- ctrl := t_LapdmCtrlUA(true),
+ ctrl := tr_LapdmCtrlUA(true),
len := ?,
m := false,
el := 1,
@@ -69,9 +69,9 @@ module L1CTL_Test {
/* template for a valid UA frame */
template LapdmFrame LAPDm_B_UA(template GsmSapi sapi, octetstring payload) := {
- b := {
+ ab := {
addr := tr_LapdmAddr(sapi, false),
- ctrl := t_LapdmCtrlUA(true),
+ ctrl := tr_LapdmCtrlUA(true),
len := lengthof(payload),
m := false,
el := 1,
@@ -81,9 +81,9 @@ module L1CTL_Test {
/* template for a valid UI frame */
template LapdmFrame LAPDm_B_UI(template GsmSapi sapi, octetstring payload) := {
- b := {
+ ab := {
addr := tr_LapdmAddr(sapi, true),
- ctrl := t_LapdmCtrlUI(false),
+ ctrl := tr_LapdmCtrlUI(false),
len := lengthof(payload),
m := false,
el := 1,
@@ -92,7 +92,7 @@ module L1CTL_Test {
}
template LapdmFrame t_nopayload(template GsmSapi sapi) := {
- b := {
+ ab := {
addr := tr_LapdmAddr(sapi, true),
ctrl := ?,
len := 0,
@@ -103,14 +103,14 @@ module L1CTL_Test {
}
template LapdmFrame LAPDm_B_DISC(template GsmSapi sapi) modifies t_nopayload := {
- b := {
- ctrl := t_LapdmCtrlDISC(true)
+ ab := {
+ ctrl := tr_LapdmCtrlDISC(true)
}
}
template LapdmFrame LAPDm_B_RR(template GsmSapi sapi, template uint3_t nr) modifies t_nopayload := {
- b := {
- ctrl := t_LapdmCtrlRR(nr, false)
+ ab := {
+ ctrl := tr_LapdmCtrlRR(nr, false)
}
}
@@ -232,12 +232,12 @@ module L1CTL_Test {
log("DEC UI CU: ", dec_LapdmCtrlU('03'O));
log("DEC UI CT: ", dec_LapdmCtrl('03'O));
- log("DEC UA: ", dec_LapdmFrameB('017301'O));
- log("DEC UI: ", dec_LapdmFrameA('030301'O));
- log("DEC I: ", dec_LapdmFrameA('030001'O));
- log("DEC S: ", dec_LapdmFrameA('030101'O));
- log("DEC: ", dec_LapdmFrameB('030301'O));
- log("DEC: ", dec_LapdmFrameB('0303012B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O));
+ log("DEC UA: ", dec_LapdmFrameAB('017301'O));
+ log("DEC UI: ", dec_LapdmFrameAB('030301'O));
+ log("DEC I: ", dec_LapdmFrameAB('030001'O));
+ log("DEC S: ", dec_LapdmFrameAB('030101'O));
+ log("DEC: ", dec_LapdmFrameAB('030301'O));
+ log("DEC: ", dec_LapdmFrameAB('0303012B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O));
}
control {
diff --git a/library/LAPDm_RAW_PT.ttcn b/library/LAPDm_RAW_PT.ttcn
index d6d3be4..bdfc50b 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 98f6956..91f55fa 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 "" };