<p>neels has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/libosmocore/+/18858">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">add osmo_mobile_identity API<br><br>Implement better API around 3GPP TS 24.008 Mobile Identity coding.<br><br>struct osmo_mobile_identity is a decoded representation of the raw Mobile<br>Identity, with a string representation as well as dedicated raw uint32_t TMSI.<br>The aim is to remove all uncertainty about decoded buffer sizes / data types.<br><br>I have patches ready for current osmo CNI programs, replacing the Mobile<br>Identity coding with this new API. Deprecate the old MI API.<br>osmo-bsc: I71c3b4c65dbfdfa51409e09d4868aea83225338a<br>osmo-msc: Ic3f969e739654c1e8c387aedeeba5cce07fe2307<br>osmo-sgsn: I4cacb10bac419633ca0c14f244f9903f7f517b49<br>Note that some GPRS and SGs related coding is done here in libosmocore and<br>hence currently remains using the old implementation (see previous version of<br>this patch: Ic3f969e739654c1e8c387aedeeba5cce07fe2307).<br><br>New API functions provide properly size-checking implementations of:<br>- decoding a raw MI from a bunch of MI octets;<br>- locating and decoding MI from a full 3GPP TS 24.008 Complete Layer 3 msgb;<br>- encoding to a buffer;<br>- encoding to the end of a msgb.<br><br>Other than the old gsm48_generate_mid(), omit a TLV tag and length from<br>encoding. Many callers manually stripped the tag and value after calling<br>gsm48_generate_mid(). The aim is to leave writing a TL to the caller entirely,<br>especially since some callers need to use a TvL, i.e. support a variable-size<br>length of 8 or 16 bit.<br><br>New validity checks so far not implemented anywhere else:<br>- stricter validation of number of digits of IMSI, IMEI, IMEI-SV MI.<br>- stricter on filler nibbles to be 0xf.<br>As a result, applications using osmo_mobile_identity will be stricter in<br>rejecting coding mistakes (some of which we currently have in our test suites,<br>and which we'll need to fix).<br><br>Rationale:<br><br>While implementing osmo-bsc's MSC pooling feature in osmo-bsc, this API will be<br>used to reduce the number of times a Mobile Identity is extracted from a raw<br>RSL message.<br><br>Extracting the Mobile Identity from messages has numerous duplicate<br>implementations across our code with various levels of specialization.<br>https://xkcd.com/927/<br><br>To name a few:<br>- libosmocore: gsm48_mi_to_string(), osmo_mi_name_buf()<br>- osmo-bsc: extract_sub()<br>- osmo-msc: mm_rx_loc_upd_req(), cm_serv_reuse_conn(), gsm48_rx_mm_serv_req(),<br> vlr_proc_acc_req()<br><br>We have existing functions to produce a human readable string from a Mobile<br>Identity, more or less awkward:<br>- gsm48_mi_to_string() decodes a TMSI as a decimal number. These days we use<br> hexadecimal TMSI everywhere.<br>- osmo_mi_name_buf() decodes the BCD digits from a raw MI every time, so we'd<br> need to pass around the raw message bytes. Also, osmo_mi_name_buf() has the<br> wrong signature, it should return a length like snprintf().<br>- osmo-bsc's extract_sub() first uses gsm48_mi_to_string() which encodes the<br> raw uint32_t TMSI to a string, and then calls strtoul() via<br> tmsi_from_string() to code those back to a raw uint32_t.<br><br>Each of the above implementations employ their own size overflow checks, each<br>invoke osmo_bcd2str() and implement their own TMSI osmo_load32be() handling.<br>Too much code dup, let's hope that each and every one is correct.<br><br>In osmo-bsc, I am now implementing MSC pooling, and need to extract NRI bits<br>from a TMSI Mobile Identity. Since none of the above functions are general<br>enough to be re-used, I found myself again copy-pasting Mobile Identity code:<br>locating the MI in a 24.008 message with proper size checks, decoding MI<br>octets.<br><br>This time I would like it to become a generally re-usable API.<br><br>This patch was first merged as Ic3f969e739654c1e8c387aedeeba5cce07fe2307 and<br>caused test fallout, because it re-implemented old API with the new stricter<br>decoding. In this patch version, old API remains 1:1 unchanged to avoid such<br>fallout. Applications will soon switch to the new osmo_mobile_identity API and<br>become stricter on MI coding when that happens, not implicitly by a new<br>libosmocore version.<br><br>Change-Id: If4f7be606e54cfa1c59084cf169785b1cbda5cf5<br>---<br>M include/osmocom/core/utils.h<br>M include/osmocom/gsm/gsm48.h<br>M src/gsm/gsm48.c<br>M src/gsm/libosmogsm.map<br>M src/utils.c<br>M tests/gsm0408/gsm0408_test.c<br>M tests/gsm0408/gsm0408_test.ok<br>M tests/utils/utils_test.c<br>M tests/utils/utils_test.ok<br>9 files changed, 1,019 insertions(+), 18 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/58/18858/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/include/osmocom/core/utils.h b/include/osmocom/core/utils.h</span><br><span>index e637786..8619120 100644</span><br><span>--- a/include/osmocom/core/utils.h</span><br><span>+++ b/include/osmocom/core/utils.h</span><br><span>@@ -55,6 +55,7 @@</span><br><span> uint8_t osmo_char2bcd(char c);</span><br><span> </span><br><span> int osmo_bcd2str(char *dst, size_t dst_size, const uint8_t *bcd, int start_nibble, int end_nibble, bool allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_str2bcd(uint8_t *dst, size_t dst_size, const char *digits, int start_nibble, int end_nibble, bool allow_hex);</span><br><span> </span><br><span> int osmo_hexparse(const char *str, uint8_t *b, int max_len);</span><br><span> </span><br><span>diff --git a/include/osmocom/gsm/gsm48.h b/include/osmocom/gsm/gsm48.h</span><br><span>index 7c68b1d..f772f4a 100644</span><br><span>--- a/include/osmocom/gsm/gsm48.h</span><br><span>+++ b/include/osmocom/gsm/gsm48.h</span><br><span>@@ -4,10 +4,12 @@</span><br><span> </span><br><span> #include <stdbool.h></span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/defs.h></span><br><span> #include <osmocom/core/msgb.h></span><br><span> </span><br><span> #include <osmocom/gsm/tlv.h></span><br><span> #include <osmocom/gsm/protocol/gsm_04_08.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/protocol/gsm_23_003.h></span><br><span> #include <osmocom/gsm/gsm48_ie.h></span><br><span> #include <osmocom/gsm/gsm23003.h></span><br><span> </span><br><span>@@ -48,16 +50,55 @@</span><br><span> void gsm48_generate_lai2(struct gsm48_loc_area_id *lai48, const struct osmo_location_area_id *lai);</span><br><span> </span><br><span> #define GSM48_MID_MAX_SIZE 11</span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_generate_mid_from_tmsi(uint8_t *buf, uint32_t tmsi);</span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_generate_mid_from_imsi(uint8_t *buf, const char *imsi);</span><br><span style="color: hsl(0, 100%, 40%);">-uint8_t gsm48_generate_mid(uint8_t *buf, const char *id, uint8_t mi_type);</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_generate_mid_from_tmsi(uint8_t *buf, uint32_t tmsi)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use: l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID);"</span><br><span style="color: hsl(120, 100%, 40%);">+ " *l = osmo_mobile_identity_encode_msgb(...)");</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_generate_mid_from_imsi(uint8_t *buf, const char *imsi)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use: l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID);"</span><br><span style="color: hsl(120, 100%, 40%);">+ " *l = osmo_mobile_identity_encode_msgb(...)");</span><br><span style="color: hsl(120, 100%, 40%);">+uint8_t gsm48_generate_mid(uint8_t *buf, const char *id, uint8_t mi_type)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use: l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID);"</span><br><span style="color: hsl(120, 100%, 40%);">+ " *l = osmo_mobile_identity_encode_msgb(...)");</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/* Convert Mobile Identity (10.5.1.4) to string */</span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_mi_to_string(char *string, int str_len, const uint8_t *mi, int mi_len);</span><br><span> const char *gsm48_mi_type_name(uint8_t mi);</span><br><span style="color: hsl(0, 100%, 40%);">-const char *osmo_mi_name(const uint8_t *mi, uint8_t mi_len);</span><br><span style="color: hsl(0, 100%, 40%);">-char *osmo_mi_name_buf(char *buf, size_t buf_len, const uint8_t *mi, uint8_t mi_len);</span><br><span style="color: hsl(0, 100%, 40%);">-char *osmo_mi_name_c(const void *ctx, const uint8_t *mi, uint8_t mi_len);</span><br><span style="color: hsl(120, 100%, 40%);">+/* Convert encoded Mobile Identity (10.5.1.4) to string */</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_mi_to_string(char *string, int str_len, const uint8_t *mi, int mi_len)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use osmo_mobile_identity_decode()");</span><br><span style="color: hsl(120, 100%, 40%);">+const char *osmo_mi_name(const uint8_t *mi, uint8_t mi_len)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use osmo_mobile_identity_to_str_c()");</span><br><span style="color: hsl(120, 100%, 40%);">+char *osmo_mi_name_buf(char *buf, size_t buf_len, const uint8_t *mi, uint8_t mi_len)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use osmo_mobile_identity_to_str_buf()");</span><br><span style="color: hsl(120, 100%, 40%);">+char *osmo_mi_name_c(const void *ctx, const uint8_t *mi, uint8_t mi_len)</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_DEPRECATED_OUTSIDE("Instead use osmo_mobile_identity_to_str_c()");</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Decoded representation of a Mobile Identity (3GPP TS 24.008 10.5.1.4).</span><br><span style="color: hsl(120, 100%, 40%);">+ * See osmo_mobile_identity_decode() and osmo_mobile_identity_from_l3(). */</span><br><span style="color: hsl(120, 100%, 40%);">+struct osmo_mobile_identity {</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! A GSM_MI_TYPE_* constant (like GSM_MI_TYPE_IMSI). */</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t type;</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! Decoded Mobile Identity digits or TMSI value. IMSI, IMEI and IMEISV as digits like</span><br><span style="color: hsl(120, 100%, 40%);">+ * "12345678", and TMSI is represented as raw uint32_t. */</span><br><span style="color: hsl(120, 100%, 40%);">+ union {</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! type == GSM_MI_TYPE_IMSI. */</span><br><span style="color: hsl(120, 100%, 40%);">+ char imsi[GSM23003_IMSI_MAX_DIGITS + 1];</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! type == GSM_MI_TYPE_IMEI. */</span><br><span style="color: hsl(120, 100%, 40%);">+ char imei[GSM23003_IMEI_NUM_DIGITS + 1];</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! type == GSM_MI_TYPE_IMEISV. */</span><br><span style="color: hsl(120, 100%, 40%);">+ char imeisv[GSM23003_IMEISV_NUM_DIGITS + 1];</span><br><span style="color: hsl(120, 100%, 40%);">+ /*! TMSI / P-TMSI / M-TMSI integer value if type == GSM_MI_TYPE_TMSI. */</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t tmsi;</span><br><span style="color: hsl(120, 100%, 40%);">+ };</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_to_str_buf(char *buf, size_t buflen, const struct osmo_mobile_identity *mi);</span><br><span style="color: hsl(120, 100%, 40%);">+char *osmo_mobile_identity_to_str_c(void *ctx, const struct osmo_mobile_identity *mi);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_cmp(const struct osmo_mobile_identity *a, const struct osmo_mobile_identity *b);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_decode(struct osmo_mobile_identity *mi, const uint8_t *mi_data, uint8_t mi_len,</span><br><span style="color: hsl(120, 100%, 40%);">+ bool allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_decode_from_l3(struct osmo_mobile_identity *mi, struct msgb *msg, bool allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encoded_len(const struct osmo_mobile_identity *mi, int *mi_digits);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encode_buf(uint8_t *buf, size_t buflen, const struct osmo_mobile_identity *mi, bool allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encode_msgb(struct msgb *msg, const struct osmo_mobile_identity *mi, bool allow_hex);</span><br><span> </span><br><span> /* Parse Routeing Area Identifier */</span><br><span> void gsm48_parse_ra(struct gprs_ra_id *raid, const uint8_t *buf);</span><br><span>diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c</span><br><span>index 8d0998b..4368ce2 100644</span><br><span>--- a/src/gsm/gsm48.c</span><br><span>+++ b/src/gsm/gsm48.c</span><br><span>@@ -45,6 +45,7 @@</span><br><span> #include <osmocom/gsm/protocol/gsm_04_80.h></span><br><span> #include <osmocom/gsm/protocol/gsm_08_58.h></span><br><span> #include <osmocom/gsm/protocol/gsm_04_08_gprs.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/protocol/gsm_23_003.h></span><br><span> </span><br><span> /*! \addtogroup gsm0408</span><br><span> * @{</span><br><span>@@ -458,7 +459,8 @@</span><br><span> return get_value_string(mi_type_names, mi);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Return a human readable representation of a Mobile Identity in caller-provided buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Return a human readable representation of a Mobile Identity in caller-provided buffer.</span><br><span> * \param[out] buf caller-provided output buffer</span><br><span> * \param[in] buf_len size of buf in bytes</span><br><span> * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data.</span><br><span>@@ -497,7 +499,8 @@</span><br><span> }</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Return a human readable representation of a Mobile Identity in static buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Return a human readable representation of a Mobile Identity in static buffer.</span><br><span> * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data.</span><br><span> * \param[in] mi_len Length of mi.</span><br><span> * \return A string like "IMSI-1234567", "TMSI-0x1234ABCD" or "unknown", "TMSI-invalid"...</span><br><span>@@ -508,7 +511,8 @@</span><br><span> return osmo_mi_name_buf(mi_name, sizeof(mi_name), mi, mi_len);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Return a human readable representation of a Mobile Identity in dynamically-allocated buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Return a human readable representation of a Mobile Identity in dynamically-allocated buffer.</span><br><span> * \param[in] ctx talloc context from which to allocate output buffer</span><br><span> * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data.</span><br><span> * \param[in] mi_len Length of mi.</span><br><span>@@ -524,6 +528,450 @@</span><br><span> return osmo_mi_name_buf(mi_name, buf_len, mi, mi_len);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+/*! Extract Mobile Identity from encoded bytes (3GPP TS 24.008 10.5.1.4).</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * On failure (negative return value), mi->type == GSM_MI_TYPE_NONE, mi->string[] is all-zero and mi->tmsi ==</span><br><span style="color: hsl(120, 100%, 40%);">+ * GSM_RESERVED_TMSI.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * On success, mi->type reflects the decoded Mobile Identity type (GSM_MI_TYPE_IMSI, GSM_MI_TYPE_TMSI, GSM_MI_TYPE_IMEI</span><br><span style="color: hsl(120, 100%, 40%);">+ * or GSM_MI_TYPE_IMEISV).</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * On success, mi->string always contains a human readable representation of the Mobile Identity digits: IMSI, IMEI and</span><br><span style="color: hsl(120, 100%, 40%);">+ * IMEISV as digits like "12345678", and TMSI as "0x" and 8 hexadecimal digits like "0x1234abcd".</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * mi->tmsi contains the uint32_t TMSI value iff the extracted Mobile Identity was a TMSI, or GSM_RESERVED_TMSI</span><br><span style="color: hsl(120, 100%, 40%);">+ * otherwise.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] mi Return buffer for decoded Mobile Identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi_data The encoded Mobile Identity octets.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi_len Number of octets in mi_data.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] allow_hex If false, hexadecimal digits (>9) result in an error return value.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \returns 0 on success, negative on error: -EBADMSG = invalid length indication or invalid data,</span><br><span style="color: hsl(120, 100%, 40%);">+ * -EINVAL = unknown Mobile Identity type.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_decode(struct osmo_mobile_identity *mi, const uint8_t *mi_data, uint8_t mi_len,</span><br><span style="color: hsl(120, 100%, 40%);">+ bool allow_hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ int nibbles_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ char *str;</span><br><span style="color: hsl(120, 100%, 40%);">+ size_t str_size;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!mi_data || mi_len < 1)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ nibbles_len = (mi_len - 1) * 2 + ((mi_data[0] & GSM_MI_ODD) ? 1 : 0);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ *mi = (struct osmo_mobile_identity){</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = mi_data[0] & GSM_MI_TYPE_MASK,</span><br><span style="color: hsl(120, 100%, 40%);">+ };</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* First do length checks */</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mi->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi->tmsi = GSM_RESERVED_TMSI;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (nibbles_len != (GSM23003_TMSI_NUM_BYTES * 2)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (nibbles_len < GSM23003_IMSI_MIN_DIGITS || nibbles_len > GSM23003_IMSI_MAX_DIGITS) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ str = mi->imsi;</span><br><span style="color: hsl(120, 100%, 40%);">+ str_size = sizeof(mi->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (nibbles_len != GSM23003_IMEI_NUM_DIGITS && nibbles_len != GSM23003_IMEI_NUM_DIGITS_NO_CHK) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ str = mi->imei;</span><br><span style="color: hsl(120, 100%, 40%);">+ str_size = sizeof(mi->imei);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (nibbles_len != GSM23003_IMEISV_NUM_DIGITS) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ str = mi->imeisv;</span><br><span style="color: hsl(120, 100%, 40%);">+ str_size = sizeof(mi->imeisv);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Decode BCD digits */</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mi->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* MI is a 32bit integer TMSI. Length has been checked above. */</span><br><span style="color: hsl(120, 100%, 40%);">+ if ((mi_data[0] & 0xf0) != 0xf0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* A TMSI always has the first nibble == 0xf */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ mi->tmsi = osmo_load32be(&mi_data[1]);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* If the length is even, the last nibble (higher nibble of last octet) must be 0xf */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!(mi_data[0] & GSM_MI_ODD)</span><br><span style="color: hsl(120, 100%, 40%);">+ && ((mi_data[mi_len - 1] & 0xf0) != 0xf0)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = osmo_bcd2str(str, str_size, mi_data, 1, 1 + nibbles_len, allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* rc checked below */</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Already handled above, but as future bug paranoia: */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* check mi->str printing rc */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc < 1 || rc >= str_size) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto return_error;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+return_error:</span><br><span style="color: hsl(120, 100%, 40%);">+ *mi = (struct osmo_mobile_identity){</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_NONE,</span><br><span style="color: hsl(120, 100%, 40%);">+ };</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Return the number of encoded Mobile Identity octets, without actually encoding.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Useful to write tag-length header before encoding the MI.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi Mobile Identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] mi_digits If not NULL, store the number of nibbles of used MI data (i.e. strlen(mi->string) or 8 for a TMSI).</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return octets that osmo_mobile_identity_encode_msgb() will write for this mi.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encoded_len(const struct osmo_mobile_identity *mi, int *mi_digits)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int mi_nibbles;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!mi)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mi->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_nibbles = GSM23003_TMSI_NUM_BYTES * 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_nibbles = strlen(mi->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_nibbles < GSM23003_IMSI_MIN_DIGITS</span><br><span style="color: hsl(120, 100%, 40%);">+ || mi_nibbles > GSM23003_IMSI_MAX_DIGITS)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_nibbles = strlen(mi->imei);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_nibbles < GSM23003_IMEI_NUM_DIGITS_NO_CHK</span><br><span style="color: hsl(120, 100%, 40%);">+ || mi_nibbles > GSM23003_IMEI_NUM_DIGITS)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_nibbles = strlen(mi->imeisv);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_nibbles != GSM23003_IMEISV_NUM_DIGITS)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOTSUP;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_digits)</span><br><span style="color: hsl(120, 100%, 40%);">+ *mi_digits = mi_nibbles;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* one type nibble, plus the MI nibbles, plus a filler nibble to complete the last octet:</span><br><span style="color: hsl(120, 100%, 40%);">+ * mi_octets = ceil((float)(mi_nibbles + 1) / 2)</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+ return (mi_nibbles + 2) / 2;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Encode Mobile Identity from uint32_t (TMSI) or digits string (all others) (3GPP TS 24.008 10.5.1.4).</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] buf Return buffer for encoded Mobile Identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] buflen sizeof(buf).</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi Mobile identity to encode.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] allow_hex If false, hexadecimal digits (>9) result in an error return value.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \returns Amount of bytes written to buf, or negative on error.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encode_buf(uint8_t *buf, size_t buflen, const struct osmo_mobile_identity *mi, bool allow_hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ int nibbles_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ int mi_octets;</span><br><span style="color: hsl(120, 100%, 40%);">+ const char *mi_str;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!buf || !buflen)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_octets = osmo_mobile_identity_encoded_len(mi, &nibbles_len);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_octets < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ return mi_octets;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_octets > buflen)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOSPC;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ buf[0] = (mi->type & GSM_MI_TYPE_MASK) | ((nibbles_len & 1) ? GSM_MI_ODD : 0);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mi->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ buf[0] |= 0xf0;</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_store32be(mi->tmsi, &buf[1]);</span><br><span style="color: hsl(120, 100%, 40%);">+ return mi_octets;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_str = mi->imsi;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_str = mi->imei;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_str = mi->imeisv;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOTSUP;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = osmo_str2bcd(buf, buflen, mi_str, 1, -1, allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc != mi_octets)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ return mi_octets;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Encode Mobile Identity type and BCD digits, appended to a msgb.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Example to add a GSM48_IE_MOBILE_ID IEI with tag and length to a msgb:</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI, .tmsi = random_tmsi, };</span><br><span style="color: hsl(120, 100%, 40%);">+ * uint8_t *l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID);</span><br><span style="color: hsl(120, 100%, 40%);">+ * int rc = osmo_mobile_identity_encode_msgb(msg, &mi, false);</span><br><span style="color: hsl(120, 100%, 40%);">+ * if (rc < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ * goto error;</span><br><span style="color: hsl(120, 100%, 40%);">+ * *l = rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * Example to add a BSSGP_IE_IMSI with tag and variable-size length, where the</span><br><span style="color: hsl(120, 100%, 40%);">+ * length needs to be known at the time of writing the IE tag-length header:</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI, };</span><br><span style="color: hsl(120, 100%, 40%);">+ * OSMO_STRLCPY_ARRAY(mi.imsi, pinfo->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ * msgb_tvl_put(msg, BSSGP_IE_IMSI, osmo_mobile_identity_encoded_len(&mi, NULL));</span><br><span style="color: hsl(120, 100%, 40%);">+ * if (osmo_mobile_identity_encode_msgb(msg, &mi, false) < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ * goto error;</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_encode_msgb(struct msgb *msg, const struct osmo_mobile_identity *mi, bool allow_hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc = osmo_mobile_identity_encode_buf(msg->tail, msgb_tailroom(msg), mi, allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_put(msg, rc);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Extract Mobile Identity from a Complete Layer 3 message.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * Determine the Mobile Identity data and call osmo_mobile_identity_decode() to return a decoded struct</span><br><span style="color: hsl(120, 100%, 40%);">+ * osmo_mobile_identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] mi Return buffer for decoded Mobile Identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] msg The Complete Layer 3 message to extract from (LU, CM Service Req or Paging Resp).</span><br><span style="color: hsl(120, 100%, 40%);">+ * \returns 0 on success, negative on error: return codes as defined in osmo_mobile_identity_decode(), or</span><br><span style="color: hsl(120, 100%, 40%);">+ * -ENOTSUP = not a Complete Layer 3 message,</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_decode_from_l3(struct osmo_mobile_identity *mi, struct msgb *msg, bool allow_hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gsm48_hdr *gh;</span><br><span style="color: hsl(120, 100%, 40%);">+ int8_t pdisc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t mtype = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gsm48_loc_upd_req *lu;</span><br><span style="color: hsl(120, 100%, 40%);">+ const uint8_t *cm2_buf;</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t cm2_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ const uint8_t *mi_start;</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gsm48_pag_resp *paging_response;</span><br><span style="color: hsl(120, 100%, 40%);">+ const uint8_t *mi_data;</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t mi_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gsm48_imsi_detach_ind *idi;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ *mi = (struct osmo_mobile_identity){</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_NONE,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = GSM_RESERVED_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ };</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh))</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ pdisc = gsm48_hdr_pdisc(gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ mtype = gsm48_hdr_msg_type(gh);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (pdisc) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_PDISC_MM:</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mtype) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_MM_LOC_UPD_REQUEST:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* First make sure that lu-> can be dereferenced */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*lu))</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Now we know there is enough msgb data to read a lu->mi_len, so also check that */</span><br><span style="color: hsl(120, 100%, 40%);">+ lu = (struct gsm48_loc_upd_req*)gh->data;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*lu) + lu->mi_len)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_data = lu->mi;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = lu->mi_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto got_mi;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_MM_CM_SERV_REQ:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_MM_CM_REEST_REQ:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Unfortunately in Phase1 the Classmark2 length is variable, so we cannot</span><br><span style="color: hsl(120, 100%, 40%);">+ * just use gsm48_service_request struct, and need to parse it manually. */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + 2)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ cm2_len = gh->data[1];</span><br><span style="color: hsl(120, 100%, 40%);">+ cm2_buf = gh->data + 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto got_cm2;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_MM_IMSI_DETACH_IND:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*idi))</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ idi = (struct gsm48_imsi_detach_ind*) gh->data;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_data = idi->mi;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = idi->mi_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto got_mi;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_MM_ID_RESP:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + 2)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_data = gh->data+1;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = gh->data[0];</span><br><span style="color: hsl(120, 100%, 40%);">+ goto got_mi;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_PDISC_RR:</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mtype) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM48_MT_RR_PAG_RESP:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*paging_response))</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+ paging_response = (struct gsm48_pag_resp*)gh->data;</span><br><span style="color: hsl(120, 100%, 40%);">+ cm2_len = paging_response->cm2_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ cm2_buf = (uint8_t*)&paging_response->cm2;</span><br><span style="color: hsl(120, 100%, 40%);">+ goto got_cm2;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOTSUP;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+got_cm2:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* MI (Mobile Identity) LV follows the Classmark2 */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* There must be at least a mi_len byte after the CM2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (cm2_buf + cm2_len + 1 > msg->tail)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_start = cm2_buf + cm2_len;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = mi_start[0];</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_data = mi_start + 1;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+got_mi:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* mi_data points at the start of the Mobile Identity coding of mi_len bytes */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (mi_data + mi_len > msg->tail)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EBADMSG;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return osmo_mobile_identity_decode(mi, mi_data, mi_len, allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Return a human readable representation of a struct osmo_mobile_identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Write a string like "IMSI-1234567", "TMSI-0x1234ABCD" or "NONE", "NULL".</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] buf String buffer to write to.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] buflen sizeof(buf).</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi Decoded Mobile Identity data.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return the strlen() of the string written when buflen is sufficiently large, like snprintf().</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_to_str_buf(char *buf, size_t buflen, const struct osmo_mobile_identity *mi)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct osmo_strbuf sb = { .buf = buf, .len = buflen };</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!mi)</span><br><span style="color: hsl(120, 100%, 40%);">+ return snprintf(buf, buflen, "NULL");</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRBUF_PRINTF(sb, "%s", gsm48_mi_type_name(mi->type));</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (mi->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRBUF_PRINTF(sb, "-0x%08" PRIX32, mi->tmsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRBUF_PRINTF(sb, "-%s", mi->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRBUF_PRINTF(sb, "-%s", mi->imei);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRBUF_PRINTF(sb, "-%s", mi->imeisv);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ return sb.chars_needed;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Like osmo_mobile_identity_to_str_buf(), but return the string in a talloc buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] ctx Talloc context to allocate from.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] mi Decoded Mobile Identity data.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return a string like "IMSI-1234567", "TMSI-0x1234ABCD" or "NONE", "NULL".</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+char *osmo_mobile_identity_to_str_c(void *ctx, const struct osmo_mobile_identity *mi)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_NAME_C_IMPL(ctx, 32, "ERROR", osmo_mobile_identity_to_str_buf, mi)</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Compare two osmo_mobile_identity structs, returning typical cmp() result.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] a Left side osmo_mobile_identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] b Right side osmo_mobile_identity.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \returns 0 if both are equal, -1 if a < b, 1 if a > b.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_mobile_identity_cmp(const struct osmo_mobile_identity *a, const struct osmo_mobile_identity *b)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int cmp;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (a == b)</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!a)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -1;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!b)</span><br><span style="color: hsl(120, 100%, 40%);">+ return 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ cmp = OSMO_CMP(a->type, b->type);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (cmp)</span><br><span style="color: hsl(120, 100%, 40%);">+ return cmp;</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (a->type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_TMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ return OSMO_CMP(a->tmsi, b->tmsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMSI:</span><br><span style="color: hsl(120, 100%, 40%);">+ return strncmp(a->imsi, b->imsi, sizeof(a->imsi));</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEI:</span><br><span style="color: hsl(120, 100%, 40%);">+ return strncmp(a->imei, b->imei, sizeof(a->imei));</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_MI_TYPE_IMEISV:</span><br><span style="color: hsl(120, 100%, 40%);">+ return strncmp(a->imeisv, b->imeisv, sizeof(a->imeisv));</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* No known type, but both have the same type. */</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> /*! Checks is particular message is cipherable in A/Gb mode according to</span><br><span> * 3GPP TS 24.008 § 4.7.1.2</span><br><span> * \param[in] hdr Message header</span><br><span>@@ -676,7 +1124,8 @@</span><br><span> }</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Generate TS 04.08 Mobile ID from TMSI</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Generate TS 04.08 Mobile ID from TMSI</span><br><span> * \param[out] buf Caller-provided output buffer (7 bytes)</span><br><span> * \param[in] tmsi TMSI to be encoded</span><br><span> * \returns number of byes encoded (always 7) */</span><br><span>@@ -692,7 +1141,8 @@</span><br><span> return 7;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Generate TS 24.008 §10.5.1.4 Mobile ID of BCD type from ASCII string</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Generate TS 24.008 §10.5.1.4 Mobile ID of BCD type from ASCII string</span><br><span> * \param[out] buf Caller-provided output buffer of at least GSM48_MID_MAX_SIZE bytes</span><br><span> * \param[in] id Identity to be encoded</span><br><span> * \param[in] mi_type Type of identity (e.g. GSM_MI_TYPE_IMSI, IMEI, IMEISV)</span><br><span>@@ -724,7 +1174,8 @@</span><br><span> return 2 + buf[1];</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Generate TS 04.08 Mobile ID from IMSI</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Generate TS 04.08 Mobile ID from IMSI</span><br><span> * \param[out] buf Caller-provided output buffer</span><br><span> * \param[in] imsi IMSI to be encoded</span><br><span> * \returns number of bytes used in \a buf */</span><br><span>@@ -733,7 +1184,8 @@</span><br><span> return gsm48_generate_mid(buf, imsi, GSM_MI_TYPE_IMSI);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/*! Convert TS 04.08 Mobile Identity (10.5.1.4) to string.</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Deprecated, see osmo_mobile_identity instead.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Convert TS 04.08 Mobile Identity (10.5.1.4) to string.</span><br><span> * This function does not validate the Mobile Identity digits, i.e. digits > 9 are returned as 'A'-'F'.</span><br><span> * \param[out] string Caller-provided buffer for output</span><br><span> * \param[in] str_len Length of \a string in bytes</span><br><span>diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map</span><br><span>index ac9aeb2..742cec3 100644</span><br><span>--- a/src/gsm/libosmogsm.map</span><br><span>+++ b/src/gsm/libosmogsm.map</span><br><span>@@ -363,6 +363,14 @@</span><br><span> gsm48_generate_mid_from_imsi;</span><br><span> gsm48_generate_mid_from_tmsi;</span><br><span> gsm48_mi_to_string;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_to_str_buf;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_to_str_c;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_cmp;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_decode;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_decode_from_l3;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_encoded_len;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_encode_buf;</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_mobile_identity_encode_msgb;</span><br><span> gsm48_mm_att_tlvdef;</span><br><span> gsm48_number_of_paging_subchannels;</span><br><span> gsm48_parse_ra;</span><br><span>diff --git a/src/utils.c b/src/utils.c</span><br><span>index 18e105f..3c4a8c9 100644</span><br><span>--- a/src/utils.c</span><br><span>+++ b/src/utils.c</span><br><span>@@ -175,6 +175,65 @@</span><br><span> return OSMO_MAX(0, end_nibble - start_nibble);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+/*! Convert string to BCD.</span><br><span style="color: hsl(120, 100%, 40%);">+ * The given nibble offsets are interpreted in BCD order, i.e. nibble 0 is bcd[0] & 0x0f, nibble 1 is bcd[0] & 0xf0, nibble</span><br><span style="color: hsl(120, 100%, 40%);">+ * 3 is bcd[1] & 0x0f, etc..</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[out] dst Output BCD buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] dst_size sizeof() the output string buffer.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] digits String containing decimal or hexadecimal digits in upper or lower case.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] start_nibble Offset to start from, in nibbles, typically 1 to skip the first (MI type) nibble.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] end_nibble Negative to write all digits found in str, followed by 0xf nibbles to fill any started octet.</span><br><span style="color: hsl(120, 100%, 40%);">+ * If >= 0, stop before this offset in nibbles, e.g. to get default behavior, pass</span><br><span style="color: hsl(120, 100%, 40%);">+ * start_nibble + strlen(str) + ((start_nibble + strlen(str)) & 1? 1 : 0) + 1.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] allow_hex If false, return error if there are hexadecimal digits (A-F). If true, write those to</span><br><span style="color: hsl(120, 100%, 40%);">+ * BCD.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \returns The buffer size in octets that is used to place all bcd digits (including the skipped nibbles</span><br><span style="color: hsl(120, 100%, 40%);">+ * from 'start_nibble' and rounded up to full octets); -EINVAL on invalid digits;</span><br><span style="color: hsl(120, 100%, 40%);">+ * -ENOMEM if dst is NULL, if dst_size is too small to contain all nibbles, or if start_nibble is negative.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int osmo_str2bcd(uint8_t *dst, size_t dst_size, const char *digits, int start_nibble, int end_nibble, bool allow_hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ const char *digit = digits;</span><br><span style="color: hsl(120, 100%, 40%);">+ int nibble_i;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!dst || !dst_size || start_nibble < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOMEM;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (end_nibble < 0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ end_nibble = start_nibble + strlen(digits);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* If the last octet is not complete, add another filler nibble */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (end_nibble & 1)</span><br><span style="color: hsl(120, 100%, 40%);">+ end_nibble++;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if ((end_nibble / 2) > dst_size)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOMEM;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ for (nibble_i = start_nibble; nibble_i < end_nibble; nibble_i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t nibble = 0xf;</span><br><span style="color: hsl(120, 100%, 40%);">+ int octet = nibble_i >> 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (*digit) {</span><br><span style="color: hsl(120, 100%, 40%);">+ char c = *digit;</span><br><span style="color: hsl(120, 100%, 40%);">+ digit++;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (c >= '0' && c <= '9')</span><br><span style="color: hsl(120, 100%, 40%);">+ nibble = c - '0';</span><br><span style="color: hsl(120, 100%, 40%);">+ else if (allow_hex && c >= 'A' && c <= 'F')</span><br><span style="color: hsl(120, 100%, 40%);">+ nibble = 0xa + (c - 'A');</span><br><span style="color: hsl(120, 100%, 40%);">+ else if (allow_hex && c >= 'a' && c <= 'f')</span><br><span style="color: hsl(120, 100%, 40%);">+ nibble = 0xa + (c - 'a');</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ nibble &= 0xf;</span><br><span style="color: hsl(120, 100%, 40%);">+ if ((nibble_i & 1))</span><br><span style="color: hsl(120, 100%, 40%);">+ dst[octet] = (nibble << 4) | (dst[octet] & 0x0f);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ dst[octet] = (dst[octet] & 0xf0) | nibble;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* floor(float(end_nibble) / 2) */</span><br><span style="color: hsl(120, 100%, 40%);">+ return end_nibble / 2;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> /*! Parse a string containing hexadecimal digits</span><br><span> * \param[in] str string containing ASCII encoded hexadecimal digits</span><br><span> * \param[out] b output buffer</span><br><span>diff --git a/tests/gsm0408/gsm0408_test.c b/tests/gsm0408/gsm0408_test.c</span><br><span>index 9617823..6cd3381 100644</span><br><span>--- a/tests/gsm0408/gsm0408_test.c</span><br><span>+++ b/tests/gsm0408/gsm0408_test.c</span><br><span>@@ -522,9 +522,14 @@</span><br><span> printf(" ERROR: expected '%s'\n", t->expect_mi_tlv_hex);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- /* skip the GSM48_IE_MOBILE_ID tag and length */</span><br><span style="color: hsl(0, 100%, 40%);">- mi_buf = tlv_buf + 2;</span><br><span style="color: hsl(0, 100%, 40%);">- mi_len = tlv_len - 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (tlv_len) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* skip the GSM48_IE_MOBILE_ID tag and length */</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_buf = tlv_buf + 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = tlv_len - 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_buf = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ mi_len = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span> </span><br><span> rc = gsm48_mi_to_string(str, str_size, mi_buf, mi_len);</span><br><span> printf(" -> MI-str=%s rc=%d\n", osmo_quote_str(str, -1), rc);</span><br><span>@@ -611,6 +616,368 @@</span><br><span> printf("\n");</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+struct msgb *msgb_from_hex(const char *label, uint16_t size, const char *hex)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = msgb_alloc_headroom(size, 4, label);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ msg->l3h = msgb_put(msg, osmo_hexparse(hex, msg->data, msgb_tailroom(msg)));</span><br><span style="color: hsl(120, 100%, 40%);">+ return msg;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+struct mobile_identity_tc {</span><br><span style="color: hsl(120, 100%, 40%);">+ const char *label;</span><br><span style="color: hsl(120, 100%, 40%);">+ const char *compl_l3_msg;</span><br><span style="color: hsl(120, 100%, 40%);">+ int expect_rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct osmo_mobile_identity expect_mi;</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Some Complete Layer 3 messages copied from real GSM network traces. */</span><br><span style="color: hsl(120, 100%, 40%);">+struct mobile_identity_tc mobile_identity_tests[] = {</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with IMSI 901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "089910070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with TMSI 0x0980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "05084262f224002a50" "05f40980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0x0980ad8a,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with invalid MI type",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "089d10070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EINVAL,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with truncated IMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "0899100700000064",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with too short IMSI MI (12345)",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "03193254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with just long enough IMSI MI 123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "04113254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with max length IMSI MI 123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "081932547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with just too long IMSI MI 1234567890123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050802008168000130" "091132547698103254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with truncated TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "05084262f224002a50" "05f40980ad",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with odd length TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "05084262f224002a50" "05fc0980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with too long TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "05084262f224002a50" "06f40980ad23",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "LU with too short TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "05084262f224002a50" "04f480ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with IMSI 123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "04113254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with TMSI 0x5a42e404",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "05f45a42e404",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0x5a42e404,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with shorter CM2, with IMSI 123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401025058" "04113254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with longer CM2, with IMSI 123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401055058a62342" "04113254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with shorter CM2, with TMSI 0x00000000",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401025058" "05f400000000",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with invalid MI type",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "089d10070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EINVAL,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with truncated IMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "0899100700000064",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with truncated TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "0524010150" "05f40980ad",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with odd length TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401045058a623" "05fc0980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with too long TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "06f40980ad23",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Request with too short TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052401035058a6" "04f480ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "CM Service Reestablish Request with TMSI 0x5a42e404",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "052801035058a6" "05f45a42e404",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0x5a42e404,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with IMSI 1234567",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "0419325476",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "1234567",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with TMSI 0xb48883de",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "05f4b48883de",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0xb48883de,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with TMSI, with unused nibble not 0xf",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "0504b48883de",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with too short IMEI (1234567)",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "041a325476",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with IMEI 123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "081a32547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMEI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imei = "123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with IMEI 12345678901234 (no Luhn checksum)",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "0812325476981032f4",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMEI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imei = "12345678901234",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with IMEISV 1234567890123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "091332547698103254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMEISV,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imeisv = "1234567890123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with too short IMEISV 123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "081b32547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with too long IMEISV 12345678901234567",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "091b3254769810325476",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Paging Response with IMSI 123456789012345 and flipped ODD bit",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "06270003505886" "081132547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with IMSI 901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "089910070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with TMSI 0x0980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "05f40980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_TMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .tmsi = 0x0980ad8a,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with invalid MI type",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "089d10070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EINVAL,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with truncated IMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "0899100700000064",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with too short IMSI MI (12345)",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "03193254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with just long enough IMSI MI 123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "04113254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with max length IMSI MI 123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "081932547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with just too long IMSI MI 1234567890123456",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "091132547698103254f6",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with truncated TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "05f40980ad",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with odd length TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "05fc0980ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with too long TMSI MI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "06f40980ad23",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "IMSI-Detach with too short TMSI",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "050130" "04f480ad8a",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_rc = -EBADMSG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Identity Response with IMSI 901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "0519" "089910070000006402",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMSI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imsi = "901700000004620",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Identity Response with IMEI 123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "0519" "081a32547698103254",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMEI,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imei = "123456789012345",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ {</span><br><span style="color: hsl(120, 100%, 40%);">+ .label = "Identity Response with IMEISV 9876543210987654",</span><br><span style="color: hsl(120, 100%, 40%);">+ .compl_l3_msg = "0519" "099378563412907856f4",</span><br><span style="color: hsl(120, 100%, 40%);">+ .expect_mi = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .type = GSM_MI_TYPE_IMEISV,</span><br><span style="color: hsl(120, 100%, 40%);">+ .imeisv = "9876543210987654",</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+void test_struct_mobile_identity()</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct mobile_identity_tc *t;</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("%s()\n", __func__);</span><br><span style="color: hsl(120, 100%, 40%);">+ for (t = mobile_identity_tests; (t - mobile_identity_tests) < ARRAY_SIZE(mobile_identity_tests); t++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ struct osmo_mobile_identity mi;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&mi, 0xff, sizeof(mi));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ msg = msgb_from_hex(t->label, 1024, t->compl_l3_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = osmo_mobile_identity_decode_from_l3(&mi, msg, false);</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_free(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("%s: rc = %d", t->label, rc);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!rc) {</span><br><span style="color: hsl(120, 100%, 40%);">+ printf(", mi = %s", osmo_mobile_identity_to_str_c(OTC_SELECT, &mi));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc == t->expect_rc</span><br><span style="color: hsl(120, 100%, 40%);">+ && ((rc != 0) || !osmo_mobile_identity_cmp(&mi, &t->expect_mi))) {</span><br><span style="color: hsl(120, 100%, 40%);">+ printf(" ok");</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ printf(" ERROR: Expected rc = %d", t->expect_rc);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!t->expect_rc)</span><br><span style="color: hsl(120, 100%, 40%);">+ printf(", mi = %s", osmo_mobile_identity_to_str_c(OTC_SELECT, &t->expect_mi));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("\n");</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> static const struct bcd_number_test {</span><br><span> /* Human-readable test name */</span><br><span> const char *test_name;</span><br><span>@@ -1182,6 +1549,7 @@</span><br><span> test_mid_from_imsi();</span><br><span> test_mid_encode_decode();</span><br><span> test_mid_decode_zero_length();</span><br><span style="color: hsl(120, 100%, 40%);">+ test_struct_mobile_identity();</span><br><span> test_bcd_number_encode_decode();</span><br><span> test_ra_cap();</span><br><span> test_lai_encode_decode();</span><br><span>diff --git a/tests/gsm0408/gsm0408_test.ok b/tests/gsm0408/gsm0408_test.ok</span><br><span>index d343869..3e6ae1f 100644</span><br><span>--- a/tests/gsm0408/gsm0408_test.ok</span><br><span>+++ b/tests/gsm0408/gsm0408_test.ok</span><br><span>@@ -139,6 +139,57 @@</span><br><span> rc=1</span><br><span> returned empty string</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+test_struct_mobile_identity()</span><br><span style="color: hsl(120, 100%, 40%);">+LU with IMSI 901700000004620: rc = 0, mi = IMSI-901700000004620 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with TMSI 0x0980ad8a: rc = 0, mi = TMSI-0x0980AD8A ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with invalid MI type: rc = -22 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with truncated IMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with too short IMSI MI (12345): rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with just long enough IMSI MI 123456: rc = 0, mi = IMSI-123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with max length IMSI MI 123456789012345: rc = 0, mi = IMSI-123456789012345 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with just too long IMSI MI 1234567890123456: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with truncated TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with odd length TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with too long TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+LU with too short TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with IMSI 123456: rc = 0, mi = IMSI-123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with TMSI 0x5a42e404: rc = 0, mi = TMSI-0x5A42E404 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with shorter CM2, with IMSI 123456: rc = 0, mi = IMSI-123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with longer CM2, with IMSI 123456: rc = 0, mi = IMSI-123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with shorter CM2, with TMSI 0x00000000: rc = 0, mi = TMSI-0x00000000 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with invalid MI type: rc = -22 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with truncated IMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with truncated TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with odd length TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with too long TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Request with too short TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+CM Service Reestablish Request with TMSI 0x5a42e404: rc = 0, mi = TMSI-0x5A42E404 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with IMSI 1234567: rc = 0, mi = IMSI-1234567 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with TMSI 0xb48883de: rc = 0, mi = TMSI-0xB48883DE ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with TMSI, with unused nibble not 0xf: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with too short IMEI (1234567): rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with IMEI 123456789012345: rc = 0, mi = IMEI-123456789012345 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with IMEI 12345678901234 (no Luhn checksum): rc = 0, mi = IMEI-12345678901234 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with IMEISV 1234567890123456: rc = 0, mi = IMEI-SV-1234567890123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with too short IMEISV 123456789012345: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with too long IMEISV 12345678901234567: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Paging Response with IMSI 123456789012345 and flipped ODD bit: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with IMSI 901700000004620: rc = 0, mi = IMSI-901700000004620 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with TMSI 0x0980ad8a: rc = 0, mi = TMSI-0x0980AD8A ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with invalid MI type: rc = -22 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with truncated IMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with too short IMSI MI (12345): rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with just long enough IMSI MI 123456: rc = 0, mi = IMSI-123456 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with max length IMSI MI 123456789012345: rc = 0, mi = IMSI-123456789012345 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with just too long IMSI MI 1234567890123456: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with truncated TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with odd length TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with too long TMSI MI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+IMSI-Detach with too short TMSI: rc = -74 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Identity Response with IMSI 901700000004620: rc = 0, mi = IMSI-901700000004620 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Identity Response with IMEI 123456789012345: rc = 0, mi = IMEI-123456789012345 ok</span><br><span style="color: hsl(120, 100%, 40%);">+Identity Response with IMEISV 9876543210987654: rc = 0, mi = IMEI-SV-9876543210987654 ok</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> BSD number encoding / decoding test</span><br><span> - Running test: regular 9-digit MSISDN</span><br><span> - Encoding ASCII (buffer limit=0) '123456789'...</span><br><span>diff --git a/tests/utils/utils_test.c b/tests/utils/utils_test.c</span><br><span>index e87cb22..e15cf5f 100644</span><br><span>--- a/tests/utils/utils_test.c</span><br><span>+++ b/tests/utils/utils_test.c</span><br><span>@@ -487,6 +487,7 @@</span><br><span> {</span><br><span> int i;</span><br><span> uint8_t bcd[64];</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t bcd2[64];</span><br><span> int rc;</span><br><span> </span><br><span> printf("\nTesting bcd to string conversion\n");</span><br><span>@@ -511,6 +512,12 @@</span><br><span> printf(" ERROR: expected rc=%d\n", t->expect_rc);</span><br><span> if (strcmp(str, t->expect_str))</span><br><span> printf(" ERROR: expected result %s\n", osmo_quote_str(t->expect_str, -1));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(bcd2, 0xff, sizeof(bcd2));</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = osmo_str2bcd(bcd2, sizeof(bcd2), str, t->start_nibble, -1, t->allow_hex);</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("osmo_str2bcd(start_nibble=%d) -> rc=%d\n", t->start_nibble, rc);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc > 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ printf(" = %s\n", osmo_hexdump(bcd2, rc));</span><br><span> }</span><br><span> </span><br><span> printf("- zero output buffer\n");</span><br><span>diff --git a/tests/utils/utils_test.ok b/tests/utils/utils_test.ok</span><br><span>index baa708e..cbab72a 100644</span><br><span>--- a/tests/utils/utils_test.ok</span><br><span>+++ b/tests/utils/utils_test.ok</span><br><span>@@ -181,27 +181,41 @@</span><br><span> - BCD-input='1a 32 54 76 98 f0' nibbles=[1..11[ str_size=64</span><br><span> rc=10</span><br><span> -> "1234567890"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=6</span><br><span style="color: hsl(120, 100%, 40%);">+ = 1f 32 54 76 98 f0 </span><br><span> - BCD-input='1a 32 a4 cb 9d f0' nibbles=[1..11[ str_size=64</span><br><span> rc=-22</span><br><span> -> "1234ABCD90"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=-22</span><br><span> - BCD-input='1a 32 a4 cb 9d f0' nibbles=[1..11[ str_size=64</span><br><span> rc=10</span><br><span> -> "1234ABCD90"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=6</span><br><span style="color: hsl(120, 100%, 40%);">+ = 1f 32 a4 cb 9d f0 </span><br><span> - BCD-input='1a 32 54 76 98 f0' nibbles=[1..12[ str_size=64</span><br><span> rc=-22</span><br><span> -> "1234567890F"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=-22</span><br><span> - BCD-input='1a 32 54 76 98 f0' nibbles=[1..12[ str_size=64</span><br><span> rc=11</span><br><span> -> "1234567890F"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=6</span><br><span style="color: hsl(120, 100%, 40%);">+ = 1f 32 54 76 98 f0 </span><br><span> - BCD-input='1a 32 54 76 98 f0' nibbles=[0..12[ str_size=64</span><br><span> rc=12</span><br><span> -> "A1234567890F"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=0) -> rc=6</span><br><span style="color: hsl(120, 100%, 40%);">+ = 1a 32 54 76 98 f0 </span><br><span> - BCD-input='1a 32 54 76 98 f0' nibbles=[1..12[ str_size=5</span><br><span> rc=11</span><br><span> -> "1234"</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=3</span><br><span style="color: hsl(120, 100%, 40%);">+ = 1f 32 f4 </span><br><span> - BCD-input='' nibbles=[1..1[ str_size=64</span><br><span> rc=0</span><br><span> -> ""</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_str2bcd(start_nibble=1) -> rc=1</span><br><span style="color: hsl(120, 100%, 40%);">+ = ff </span><br><span> - zero output buffer</span><br><span> bcd2str(NULL, ...) -> -12</span><br><span> bcd2str(dst, 0, ...) -> -12</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/libosmocore/+/18858">change 18858</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/libosmocore/+/18858"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: libosmocore </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: If4f7be606e54cfa1c59084cf169785b1cbda5cf5 </div>
<div style="display:none"> Gerrit-Change-Number: 18858 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: neels <nhofmeyr@sysmocom.de> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>