feat: improve euicc info read capability (#9)

* feat: improve euicc info read capability

* chore: accept review

* refactor: all logics

* fix: code style

* fix: ram size parsing

---------

Co-authored-by: estkme <145633413+estkme@users.noreply.github.com>

euicc/es10cex.c

@@ -0,0 +1,157 @@
+#include "es10cex.h"
+#include "es10x.private.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "asn1c/asn1/GetEuiccInfo1Request.h"
+#include "asn1c/asn1/GetEuiccInfo2Request.h"
+#include "asn1c/asn1/EUICCInfo2.h"
+
+static int es10cex_version_to_string(VersionType_t version, char **out);
+
+int es10cex_get_euicc_info(struct euicc_ctx *ctx, struct es10cex_euicc_info *info)
+{
+    int fret = 0;
+    uint8_t *respbuf = NULL;
+    unsigned resplen;
+    asn_enc_rval_t asn1erval;
+    asn_dec_rval_t asn1drval;
+    GetEuiccInfo2Request_t *asn1req = NULL;
+    EUICCInfo2_t *asn1resp = NULL;
+
+    asn1req = malloc(sizeof(GetEuiccInfo2Request_t));
+    if (!asn1req)
+    {
+        goto err;
+    }
+    memset(asn1req, 0, sizeof(*asn1req));
+
+    asn1erval = der_encode_to_buffer(&asn_DEF_GetEuiccInfo2Request, asn1req, ctx->g_asn1_der_request_buf,
+                                     sizeof(ctx->g_asn1_der_request_buf));
+    ASN_STRUCT_FREE(asn_DEF_GetEuiccInfo2Request, asn1req);
+    asn1req = NULL;
+    if (asn1erval.encoded == -1)
+    {
+        goto err;
+    }
+
+    if (es10x_command(ctx, &respbuf, &resplen, ctx->g_asn1_der_request_buf, asn1erval.encoded) < 0)
+    {
+        goto err;
+    }
+
+    asn1drval = ber_decode(NULL, &asn_DEF_EUICCInfo2, (void **) &asn1resp, respbuf, resplen);
+    free(respbuf);
+    respbuf = NULL;
+
+    if (asn1drval.code != RC_OK)
+    {
+        goto err;
+    }
+
+    if (es10cex_version_to_string(asn1resp->profileVersion, &info->profile_version))
+    {
+        goto err;
+    }
+
+    if (es10cex_version_to_string(asn1resp->svn, &info->sgp22_version))
+    {
+        goto err;
+    }
+
+    if (es10cex_version_to_string(asn1resp->euiccFirmwareVer, &info->euicc_firmware_version))
+    {
+        goto err;
+    }
+
+    if (es10cex_version_to_string(asn1resp->ppVersion, &info->pp_version))
+    {
+        goto err;
+    }
+
+    if (asn1resp->javacardVersion)
+    {
+        if (es10cex_version_to_string(*asn1resp->javacardVersion, &info->uicc_firmware_version))
+        {
+            goto err;
+        }
+    }
+
+    if (asn1resp->globalplatformVersion)
+    {
+        if (es10cex_version_to_string(*asn1resp->globalplatformVersion, &info->global_platform_version))
+        {
+            goto err;
+        }
+    }
+
+    info->sas_accreditation_number = malloc(asn1resp->sasAcreditationNumber.size + 1);
+    if (info->sas_accreditation_number)
+    {
+        memcpy(info->sas_accreditation_number, asn1resp->sasAcreditationNumber.buf,
+               asn1resp->sasAcreditationNumber.size);
+        info->sas_accreditation_number[asn1resp->sasAcreditationNumber.size + 1] = '\0';
+    }
+
+    for (int i = 0; i < asn1resp->extCardResource.size;) {
+        uint8_t tag = asn1resp->extCardResource.buf[i];
+        i++;
+        uint8_t length = asn1resp->extCardResource.buf[i];
+        i++;
+        uint8_t *b = &asn1resp->extCardResource.buf[i];
+        switch (tag) {
+            case 0x81:
+                info->installed_app = b[0];
+                i += length;
+            case 0x82:
+                info->free_nvram = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | (b[0]);
+                i += length;
+            case 0x83:
+                info->free_ram = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | (b[0]);
+                i += length;
+            default:
+                i += length;
+                continue;
+        }
+    }
+
+    goto exit;
+err:
+    fret = -1;
+exit:
+    free(respbuf);
+    ASN_STRUCT_FREE(asn_DEF_GetEuiccInfo2Request, asn1req);
+    ASN_STRUCT_FREE(asn_DEF_EUICCInfo2, asn1resp);
+
+    return fret;
+}
+
+void es10cex_euicc_info_free(struct es10cex_euicc_info *info)
+{
+    if (!info) {
+        return;
+    }
+    free(info->profile_version);
+    free(info->sgp22_version);
+    free(info->euicc_firmware_version);
+    free(info->uicc_firmware_version);
+    free(info->global_platform_version);
+    free(info->sas_accreditation_number);
+    free(info->pp_version);
+}
+
+static int es10cex_version_to_string(VersionType_t version, char **out)
+{
+    if (version.size != 3) return -1;
+    char buf[12];
+    int n = snprintf(buf, 12, "%d.%d.%d", version.buf[0], version.buf[1], version.buf[2]);
+    *out = malloc(n + 1);
+    if (*out)
+    {
+        strncpy(*out, buf, n);
+        return 0;
+    }
+    return -1;
+}

euicc/es10cex.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "euicc.h"
+
+struct es10cex_euicc_info {
+    char *profile_version;
+    char *sgp22_version;
+    char *euicc_firmware_version;
+    char *uicc_firmware_version;
+    char *global_platform_version;
+    char *sas_accreditation_number;
+    char *pp_version;
+    uint8_t installed_app;
+    uint32_t free_nvram;
+    uint32_t free_ram;
+};
+
+int es10cex_get_euicc_info(struct euicc_ctx *ctx, struct es10cex_euicc_info *info);
+
+void es10cex_euicc_info_free(struct es10cex_euicc_info *info);

euicc/es10x.h

@@ -4,6 +4,7 @@
 #include "es10a.h"
 #include "es10b.h"
 #include "es10c.h"
+#include "es10cex.h"
 
 int es10x_init(struct euicc_ctx *ctx);
 void es10x_fini(struct euicc_ctx *ctx);