<p>lynxis lazus has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/libosmocore/+/24584">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">gprs_ns2_sns: use struct ns2_sns_elems in add/update/remove remote_elems<br><br>Prepare to use the function also with local elems.<br><br>Related: OS#5036<br>Change-Id: I7db43c8dbd5bd7e7b07a7d629d2615bfa18623db<br>---<br>M src/gb/gprs_ns2_sns.c<br>1 file changed, 47 insertions(+), 41 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/84/24584/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/gb/gprs_ns2_sns.c b/src/gb/gprs_ns2_sns.c</span><br><span>index 0c1ca6d..20076ed 100644</span><br><span>--- a/src/gb/gprs_ns2_sns.c</span><br><span>+++ b/src/gb/gprs_ns2_sns.c</span><br><span>@@ -449,7 +449,8 @@</span><br><span> }</span><br><span> </span><br><span> /* Add a given remote IPv4 element to gprs_sns_state */</span><br><span style="color: hsl(0, 100%, 40%);">-static int add_remote_ip4_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span style="color: hsl(120, 100%, 40%);">+static int add_ip4_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span> {</span><br><span> unsigned int i;</span><br><span> </span><br><span>@@ -457,93 +458,98 @@</span><br><span> return -NS_CAUSE_INVAL_NR_NS_VC;</span><br><span> </span><br><span> /* check for duplicates */</span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < gss->remote.num_ip4; i++) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (memcmp(&gss->remote.ip4[i], ip4, sizeof(*ip4)))</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < elems->num_ip4; i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (memcmp(&elems->ip4[i], ip4, sizeof(*ip4)))</span><br><span> continue;</span><br><span> /* TODO: log message duplicate */</span><br><span> return -NS_CAUSE_PROTO_ERR_UNSPEC;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip4 = talloc_realloc(gss, gss->remote.ip4, struct gprs_ns_ie_ip4_elem,</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip4+1);</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip4[gss->remote.num_ip4] = *ip4;</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip4 += 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip4 = talloc_realloc(gss, elems->ip4, struct gprs_ns_ie_ip4_elem,</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip4+1);</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip4[elems->num_ip4] = *ip4;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip4 += 1;</span><br><span> return 0;</span><br><span> }</span><br><span> </span><br><span> /* Remove a given remote IPv4 element from gprs_sns_state */</span><br><span style="color: hsl(0, 100%, 40%);">-static int remove_remote_ip4_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span style="color: hsl(120, 100%, 40%);">+static int remove_ip4_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span> {</span><br><span> unsigned int i;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < gss->remote.num_ip4; i++) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (memcmp(&gss->remote.ip4[i], ip4, sizeof(*ip4)))</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < elems->num_ip4; i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (memcmp(&elems->ip4[i], ip4, sizeof(*ip4)))</span><br><span> continue;</span><br><span> /* all array elements < i remain as they are; all > i are shifted left by one */</span><br><span style="color: hsl(0, 100%, 40%);">- memmove(&gss->remote.ip4[i], &gss->remote.ip4[i+1], gss->remote.num_ip4-i-1);</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip4 -= 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ memmove(&elems->ip4[i], &elems->ip4[i+1], elems->num_ip4-i-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip4 -= 1;</span><br><span> return 0;</span><br><span> }</span><br><span> return -1;</span><br><span> }</span><br><span> </span><br><span> /* update the weights for specified remote IPv4 */</span><br><span style="color: hsl(0, 100%, 40%);">-static int update_remote_ip4_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span style="color: hsl(120, 100%, 40%);">+static int update_ip4_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip4_elem *ip4)</span><br><span> {</span><br><span> unsigned int i;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < gss->remote.num_ip4; i++) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (gss->remote.ip4[i].ip_addr != ip4->ip_addr ||</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip4[i].udp_port != ip4->udp_port)</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < elems->num_ip4; i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (elems->ip4[i].ip_addr != ip4->ip_addr ||</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip4[i].udp_port != ip4->udp_port)</span><br><span> continue;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip4[i].sig_weight = ip4->sig_weight;</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip4[i].data_weight = ip4->data_weight;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip4[i].sig_weight = ip4->sig_weight;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip4[i].data_weight = ip4->data_weight;</span><br><span> return 0;</span><br><span> }</span><br><span> return -1;</span><br><span> }</span><br><span> </span><br><span> /* Add a given remote IPv6 element to gprs_sns_state */</span><br><span style="color: hsl(0, 100%, 40%);">-static int add_remote_ip6_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span style="color: hsl(120, 100%, 40%);">+static int add_ip6_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span> {</span><br><span style="color: hsl(0, 100%, 40%);">- if (gss->remote.num_ip6 >= gss->num_max_ip6_remote)</span><br><span style="color: hsl(120, 100%, 40%);">+ if (elems->num_ip6 >= gss->num_max_ip6_remote)</span><br><span> return -NS_CAUSE_INVAL_NR_NS_VC;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip6 = talloc_realloc(gss, gss->remote.ip6, struct gprs_ns_ie_ip6_elem,</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip6+1);</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip6[gss->remote.num_ip6] = *ip6;</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip6 += 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip6 = talloc_realloc(gss, elems->ip6, struct gprs_ns_ie_ip6_elem,</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip6+1);</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip6[elems->num_ip6] = *ip6;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip6 += 1;</span><br><span> return 0;</span><br><span> }</span><br><span> </span><br><span> /* Remove a given remote IPv6 element from gprs_sns_state */</span><br><span style="color: hsl(0, 100%, 40%);">-static int remove_remote_ip6_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span style="color: hsl(120, 100%, 40%);">+static int remove_ip6_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span> {</span><br><span> unsigned int i;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < gss->remote.num_ip6; i++) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (memcmp(&gss->remote.ip6[i], ip6, sizeof(*ip6)))</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < elems->num_ip6; i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (memcmp(&elems->ip6[i], ip6, sizeof(*ip6)))</span><br><span> continue;</span><br><span> /* all array elements < i remain as they are; all > i are shifted left by one */</span><br><span style="color: hsl(0, 100%, 40%);">- memmove(&gss->remote.ip6[i], &gss->remote.ip6[i+1], gss->remote.num_ip6-i-1);</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.num_ip6 -= 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ memmove(&elems->ip6[i], &elems->ip6[i+1], elems->num_ip6-i-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->num_ip6 -= 1;</span><br><span> return 0;</span><br><span> }</span><br><span> return -1;</span><br><span> }</span><br><span> </span><br><span> /* update the weights for specified remote IPv6 */</span><br><span style="color: hsl(0, 100%, 40%);">-static int update_remote_ip6_elem(struct ns2_sns_state *gss, const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span style="color: hsl(120, 100%, 40%);">+static int update_ip6_elem(struct ns2_sns_state *gss, struct ns2_sns_elems *elems,</span><br><span style="color: hsl(120, 100%, 40%);">+ const struct gprs_ns_ie_ip6_elem *ip6)</span><br><span> {</span><br><span> unsigned int i;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < gss->remote.num_ip6; i++) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (memcmp(&gss->remote.ip6[i].ip_addr, &ip6->ip_addr, sizeof(ip6->ip_addr)) ||</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip6[i].udp_port != ip6->udp_port)</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < elems->num_ip6; i++) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (memcmp(&elems->ip6[i].ip_addr, &ip6->ip_addr, sizeof(ip6->ip_addr)) ||</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip6[i].udp_port != ip6->udp_port)</span><br><span> continue;</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip6[i].sig_weight = ip6->sig_weight;</span><br><span style="color: hsl(0, 100%, 40%);">- gss->remote.ip6[i].data_weight = ip6->data_weight;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip6[i].sig_weight = ip6->sig_weight;</span><br><span style="color: hsl(120, 100%, 40%);">+ elems->ip6[i].data_weight = ip6->data_weight;</span><br><span> return 0;</span><br><span> }</span><br><span> return -1;</span><br><span>@@ -566,7 +572,7 @@</span><br><span> * SNS-ACK PDU with a cause code of "Invalid weights". */</span><br><span> </span><br><span> if (ip4) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (update_remote_ip4_elem(gss, ip4))</span><br><span style="color: hsl(120, 100%, 40%);">+ if (update_ip4_elem(gss, &gss->remote, ip4))</span><br><span> return -NS_CAUSE_UNKN_IP_EP;</span><br><span> </span><br><span> /* copy over. Both data structures use network byte order */</span><br><span>@@ -576,7 +582,7 @@</span><br><span> new_signal = ip4->sig_weight;</span><br><span> new_data = ip4->data_weight;</span><br><span> } else if (ip6) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (update_remote_ip6_elem(gss, ip6))</span><br><span style="color: hsl(120, 100%, 40%);">+ if (update_ip6_elem(gss, &gss->remote, ip6))</span><br><span> return -NS_CAUSE_UNKN_IP_EP;</span><br><span> </span><br><span> /* copy over. Both data structures use network byte order */</span><br><span>@@ -619,14 +625,14 @@</span><br><span> struct osmo_sockaddr sa = {};</span><br><span> </span><br><span> if (ip4) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (remove_remote_ip4_elem(gss, ip4) < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ if (remove_ip4_elem(gss, &gss->remote, ip4) < 0)</span><br><span> return -NS_CAUSE_UNKN_IP_EP;</span><br><span> /* copy over. Both data structures use network byte order */</span><br><span> sa.u.sin.sin_addr.s_addr = ip4->ip_addr;</span><br><span> sa.u.sin.sin_port = ip4->udp_port;</span><br><span> sa.u.sin.sin_family = AF_INET;</span><br><span> } else if (ip6) {</span><br><span style="color: hsl(0, 100%, 40%);">- if (remove_remote_ip6_elem(gss, ip6))</span><br><span style="color: hsl(120, 100%, 40%);">+ if (remove_ip6_elem(gss, &gss->remote, ip6))</span><br><span> return -NS_CAUSE_UNKN_IP_EP;</span><br><span> </span><br><span> /* copy over. Both data structures use network byte order */</span><br><span>@@ -665,10 +671,10 @@</span><br><span> * an SNS-ACK PDU with a cause code set to "Invalid number of IP4 Endpoints". */</span><br><span> switch (gss->ip) {</span><br><span> case IPv4:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = add_remote_ip4_elem(gss, ip4);</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = add_ip4_elem(gss, &gss->remote, ip4);</span><br><span> break;</span><br><span> case IPv6:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = add_remote_ip6_elem(gss, ip6);</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = add_ip6_elem(gss, &gss->remote, ip6);</span><br><span> break;</span><br><span> default:</span><br><span> /* the gss->ip is initialized with the bss */</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/libosmocore/+/24584">change 24584</a>. 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<div style="display:none"> Gerrit-Project: libosmocore </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I7db43c8dbd5bd7e7b07a7d629d2615bfa18623db </div>
<div style="display:none"> Gerrit-Change-Number: 24584 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: lynxis lazus <lynxis@fe80.eu> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>