<p>fixeria has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmocom-bb/+/14648">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">trx_toolkit/data_msg.py: add burst randomization helpers<br><br>Change-Id: Idf1393d3d1f04e6c60b356b797a18e6f77b23554<br>---<br>M src/target/trx_toolkit/data_msg.py<br>1 file changed, 30 insertions(+), 18 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/48/14648/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/target/trx_toolkit/data_msg.py b/src/target/trx_toolkit/data_msg.py</span><br><span>index 511f692..86d0827 100644</span><br><span>--- a/src/target/trx_toolkit/data_msg.py</span><br><span>+++ b/src/target/trx_toolkit/data_msg.py</span><br><span>@@ -82,6 +82,10 @@</span><br><span> def parse_burst(self, burst):</span><br><span> raise NotImplementedError</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ # Generate a random message specific burst</span><br><span style="color: hsl(120, 100%, 40%);">+ def rand_burst(self):</span><br><span style="color: hsl(120, 100%, 40%);">+ raise NotImplementedError</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> # Generates a random frame number</span><br><span> def rand_fn(self):</span><br><span> return random.randint(0, GSM_HYPERFRAME)</span><br><span>@@ -319,6 +323,14 @@</span><br><span> else:</span><br><span> self.burst = list(burst[:GSM_BURST_LEN])</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ # Generate a random message specific burst</span><br><span style="color: hsl(120, 100%, 40%);">+ def rand_burst(self, length = GSM_BURST_LEN):</span><br><span style="color: hsl(120, 100%, 40%);">+ self.burst = []</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ for i in range(length):</span><br><span style="color: hsl(120, 100%, 40%);">+ ubit = random.randint(0, 1)</span><br><span style="color: hsl(120, 100%, 40%);">+ self.burst.append(ubit)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> # Transforms this message to TRX2L1 message</span><br><span> def gen_trx2l1(self):</span><br><span> # Allocate a new message</span><br><span>@@ -480,6 +492,14 @@</span><br><span> # Save</span><br><span> self.burst = burst_sbits</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ # Generate a random message specific burst</span><br><span style="color: hsl(120, 100%, 40%);">+ def rand_burst(self, length = GSM_BURST_LEN):</span><br><span style="color: hsl(120, 100%, 40%);">+ self.burst = []</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ for i in range(length):</span><br><span style="color: hsl(120, 100%, 40%);">+ sbit = random.randint(-127, 127)</span><br><span style="color: hsl(120, 100%, 40%);">+ self.burst.append(sbit)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> # Transforms this message to L12TRX message</span><br><span> def gen_l12trx(self):</span><br><span> # Allocate a new message</span><br><span>@@ -499,28 +519,20 @@</span><br><span> log.basicConfig(level = log.DEBUG,</span><br><span> format = "[%(levelname)s] %(filename)s:%(lineno)d %(message)s")</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- # Generate two random bursts</span><br><span style="color: hsl(0, 100%, 40%);">- burst_l12trx_ref = []</span><br><span style="color: hsl(0, 100%, 40%);">- burst_trx2l1_ref = []</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- for i in range(0, GSM_BURST_LEN):</span><br><span style="color: hsl(0, 100%, 40%);">- ubit = random.randint(0, 1)</span><br><span style="color: hsl(0, 100%, 40%);">- burst_l12trx_ref.append(ubit)</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- sbit = random.randint(-127, 127)</span><br><span style="color: hsl(0, 100%, 40%);">- burst_trx2l1_ref.append(sbit)</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span> log.info("Generating the reference messages")</span><br><span> </span><br><span> # Create messages of both types</span><br><span style="color: hsl(0, 100%, 40%);">- msg_l12trx_ref = DATAMSG_L12TRX(burst = burst_l12trx_ref)</span><br><span style="color: hsl(0, 100%, 40%);">- msg_trx2l1_ref = DATAMSG_TRX2L1(burst = burst_trx2l1_ref)</span><br><span style="color: hsl(120, 100%, 40%);">+ msg_l12trx_ref = DATAMSG_L12TRX()</span><br><span style="color: hsl(120, 100%, 40%);">+ msg_trx2l1_ref = DATAMSG_TRX2L1()</span><br><span> </span><br><span> # Validate header randomization</span><br><span> for i in range(0, 100):</span><br><span> msg_l12trx_ref.rand_hdr()</span><br><span> msg_trx2l1_ref.rand_hdr()</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ msg_l12trx_ref.rand_burst()</span><br><span style="color: hsl(120, 100%, 40%);">+ msg_trx2l1_ref.rand_burst()</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> assert(msg_l12trx_ref.validate())</span><br><span> assert(msg_trx2l1_ref.validate())</span><br><span> </span><br><span>@@ -550,9 +562,9 @@</span><br><span> log.info("Comparing decoded messages with the reference")</span><br><span> </span><br><span> # Compare bursts</span><br><span style="color: hsl(0, 100%, 40%);">- assert(msg_l12trx_dec.burst == burst_l12trx_ref)</span><br><span style="color: hsl(0, 100%, 40%);">- assert(msg_trx2l1_dec.burst == burst_trx2l1_ref)</span><br><span style="color: hsl(0, 100%, 40%);">- assert(msg_trx2l1_legacy_dec.burst == burst_trx2l1_ref)</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(msg_l12trx_dec.burst == msg_l12trx_ref.burst)</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(msg_trx2l1_dec.burst == msg_trx2l1_ref.burst)</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(msg_trx2l1_legacy_dec.burst == msg_trx2l1_ref.burst)</span><br><span> </span><br><span> log.info("Compare bursts: OK")</span><br><span> </span><br><span>@@ -602,7 +614,7 @@</span><br><span> assert(msg_trx2l1_dec.fn == msg_l12trx_ref.fn)</span><br><span> assert(msg_trx2l1_dec.tn == msg_l12trx_ref.tn)</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- assert(msg_l12trx_dec.burst == DATAMSG.sbit2ubit(burst_trx2l1_ref))</span><br><span style="color: hsl(0, 100%, 40%);">- assert(msg_trx2l1_dec.burst == DATAMSG.ubit2sbit(burst_l12trx_ref))</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(msg_l12trx_dec.burst == DATAMSG.sbit2ubit(msg_trx2l1_ref.burst))</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(msg_trx2l1_dec.burst == DATAMSG.ubit2sbit(msg_l12trx_ref.burst))</span><br><span> </span><br><span> log.info("Check L12TRX <-> TRX2L1 type transformations: OK")</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmocom-bb/+/14648">change 14648</a>. 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<div style="display:none"> Gerrit-Project: osmocom-bb </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: Idf1393d3d1f04e6c60b356b797a18e6f77b23554 </div>
<div style="display:none"> Gerrit-Change-Number: 14648 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: fixeria <axilirator@gmail.com> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>