add two new RSL utility functions
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@ -21,4 +21,11 @@ const char *rsl_err_name(uint8_t err);
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/* Section 3.3.2.3 TS 05.02. I think this looks like a table */
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int rsl_ccch_conf_to_bs_cc_chans(int ccch_conf);
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/* Push a RSL RLL header with L3_INFO IE */
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int rsl_rll_push_l3(struct msgb *msg, uint8_t msg_type,
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uint8_t chan_nr, uint8_t link_id);
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/* Allocate msgb and fill with simple RSL RLL header */
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struct msgb *rsl_rll_simple(uint8_t msg_type, uint8_t chan_nr,
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uint8_t link_id);
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#endif /* _OSMOCORE_RSL_H */
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48
src/rsl.c
48
src/rsl.c
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@ -237,3 +237,51 @@ int rsl_ccch_conf_to_bs_ccch_sdcch_comb(int ccch_conf)
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return -1;
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}
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}
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/* Push a RSL RLL header with L3_INFO IE */
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int rsl_rll_push_l3(struct msgb *msg, uint8_t msg_type,
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uint8_t chan_nr, uint8_t link_id)
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{
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uint8_t l3_len = msg->tail - (uint8_t *)msgb_l3(msg);
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struct abis_rsl_rll_hdr *rh;
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/* construct a RSLms RLL message (DATA INDICATION, UNIT DATA
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* INDICATION) and send it off via RSLms */
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/* Push the L3 IE tag and lengh */
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msgb_tv16_push(msg, RSL_IE_L3_INFO, l3_len);
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/* Then push the RSL header */
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rh = (struct abis_rsl_rll_hdr *) msgb_push(msg, sizeof(*rh));
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rsl_init_rll_hdr(rh, msg_type);
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rh->c.msg_discr |= ABIS_RSL_MDISC_TRANSP;
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rh->chan_nr = chan_nr;
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rh->link_id = link_id;
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/* set the l2 header pointer */
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msg->l2h = (uint8_t *)rh;
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return 0;
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}
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struct msgb *rsl_rll_simple(uint8_t msg_type, uint8_t chan_nr,
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uint8_t link_id)
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{
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struct abis_rsl_rll_hdr *rh;
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struct msgb *msg = msgb_alloc(sizeof(*rh), "rsl_rll_simple");
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if (!msg)
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return NULL;
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/* put the RSL header */
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rh = (struct abis_rsl_rll_hdr *) msgb_put(msg, sizeof(*rh));
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rsl_init_rll_hdr(rh, msg_type);
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rh->c.msg_discr |= ABIS_RSL_MDISC_TRANSP;
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rh->chan_nr = chan_nr;
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rh->link_id = link_id;
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/* set the l2 header pointer */
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msg->l2h = (uint8_t *)rh;
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return msg;
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}
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