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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. ( https://gerrit.osmocom.org/11647 ) Change subject: core/msgb.h: introduce msgb_l4len() helper ...................................................................... core/msgb.h: introduce msgb_l4len() helper There is already a group of similar functions for L1, L2 and L3, but L4 was missing. The L4 is usually used for parsing of complex L3 messages, such as SS/USSD and SMS. This change introduces a similar halper for L4. Change-Id: I755f2d654bbdad2a8b4f94df9023bdd370b07ae6 --- M TODO-RELEASE M include/osmocom/core/msgb.h 2 files changed, 13 insertions(+), 0 deletions(-) Approvals: Jenkins Builder: Verified Harald Welte: Looks good to me, approved diff --git a/TODO-RELEASE b/TODO-RELEASE index 64833d2..5222ec9 100644 --- a/TODO-RELEASE +++ b/TODO-RELEASE @@ -10,3 +10,4 @@ libosmogsm gsm0480_l3hdr_push() removed from gsm/gsm0480.h (was not exposed) libosmogsm gsm48_push_l3hdr() (re)introduced in gsm/gsm48.h (GSM 04.08 API) libosmogsm gsm48_push_l3hdr_tid() a wrapper around gsm48_push_l3hdr() +libosmocore msgb_l4len new symbol (exposed as 'static inline' in msgb.h) diff --git a/include/osmocom/core/msgb.h b/include/osmocom/core/msgb.h index b1cb6ec..8843db0 100644 --- a/include/osmocom/core/msgb.h +++ b/include/osmocom/core/msgb.h @@ -169,6 +169,18 @@ return msgb->tail - (uint8_t *)msgb_l3(msgb); } +/*! determine length of L4 message + * \param[in] msgb message buffer + * \returns size of L4 message in bytes + * + * This function computes the number of bytes between the tail of the + * message and the layer 4 header. + */ +static inline unsigned int msgb_l4len(const struct msgb *msgb) +{ + return msgb->tail - (uint8_t *)msgb_sms(msgb); +} + /*! determine the length of the header * \param[in] msgb message buffer * \returns number of bytes between start of buffer and start of msg -- To view, visit https://gerrit.osmocom.org/11647 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I755f2d654bbdad2a8b4f94df9023bdd370b07ae6 Gerrit-Change-Number: 11647 Gerrit-PatchSet: 2 Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder (1000002) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20181106/bbb183bb/attachment.htm>