Harald Welte | 45c948c | 2018-09-23 19:26:52 +0200 | [diff] [blame] | 1 | |
| 2 | #include <osmocom/core/linuxlist.h> |
| 3 | #include <osmocom/core/talloc.h> |
| 4 | #include <osmocom/core/utils.h> |
| 5 | |
| 6 | #include <csv.h> |
| 7 | |
| 8 | #include "bankd.h" |
| 9 | |
| 10 | struct pcsc_slot_name { |
| 11 | struct llist_head list; |
| 12 | /* RSPRO bank slot number */ |
| 13 | struct bank_slot slot; |
| 14 | /* String name of the reader in PC/SC world */ |
| 15 | const char *name; |
| 16 | }; |
| 17 | |
| 18 | enum parser_state_name { |
| 19 | ST_NONE, |
| 20 | ST_BANK_NR, |
| 21 | ST_SLOT_NR, |
| 22 | ST_PCSC_NAME, |
| 23 | }; |
| 24 | struct parser_state { |
| 25 | struct bankd *bankd; |
| 26 | enum parser_state_name state; |
| 27 | struct pcsc_slot_name *cur; |
| 28 | }; |
| 29 | |
| 30 | |
| 31 | static void parser_state_init(struct parser_state *ps) |
| 32 | { |
| 33 | ps->state = ST_BANK_NR; |
| 34 | ps->cur = NULL; |
| 35 | } |
| 36 | |
| 37 | static void cb1(void *s, size_t len, void *data) |
| 38 | { |
| 39 | char *field = (char *) s; |
| 40 | struct parser_state *ps = data; |
| 41 | |
| 42 | switch (ps->state) { |
| 43 | case ST_BANK_NR: |
| 44 | OSMO_ASSERT(!ps->cur); |
| 45 | ps->cur = talloc_zero(ps->bankd, struct pcsc_slot_name); |
| 46 | OSMO_ASSERT(ps->cur); |
| 47 | ps->cur->slot.bank_id = atoi(field); |
| 48 | ps->state = ST_SLOT_NR; |
| 49 | break; |
| 50 | case ST_SLOT_NR: |
| 51 | OSMO_ASSERT(ps->cur); |
| 52 | ps->cur->slot.slot_nr = atoi(field); |
| 53 | ps->state = ST_PCSC_NAME; |
| 54 | break; |
| 55 | case ST_PCSC_NAME: |
| 56 | OSMO_ASSERT(ps->cur); |
| 57 | ps->cur->name = talloc_strdup(ps->cur, field); |
| 58 | break; |
| 59 | default: |
| 60 | OSMO_ASSERT(0); |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | static void cb2(int c, void *data) |
| 65 | { |
| 66 | struct parser_state *ps = data; |
| 67 | struct pcsc_slot_name *sn = ps->cur; |
| 68 | |
| 69 | printf("PC/SC slot name: %u/%u -> '%s'\n", sn->slot.bank_id, sn->slot.slot_nr, sn->name); |
| 70 | llist_add_tail(&sn->list, &ps->bankd->pcsc_slot_names); |
| 71 | |
| 72 | ps->state = ST_BANK_NR; |
| 73 | ps->cur = NULL; |
| 74 | } |
| 75 | |
| 76 | int bankd_pcsc_read_slotnames(struct bankd *bankd, const char *csv_file) |
| 77 | { |
| 78 | FILE *fp; |
| 79 | struct csv_parser p; |
| 80 | char buf[1024]; |
| 81 | size_t bytes_read; |
| 82 | struct parser_state ps; |
| 83 | |
| 84 | if (csv_init(&p, CSV_APPEND_NULL) != 0) |
| 85 | return -1; |
| 86 | |
| 87 | fp = fopen(csv_file, "rb"); |
| 88 | if (!fp) |
| 89 | return -1; |
| 90 | |
| 91 | parser_state_init(&ps); |
| 92 | ps.bankd = bankd; |
| 93 | |
| 94 | while ((bytes_read = fread(buf, 1, sizeof(buf), fp)) > 0) { |
| 95 | if (csv_parse(&p, buf, bytes_read, cb1, cb2, &ps) != bytes_read) { |
| 96 | fprintf(stderr, "Error parsing CSV: %s\n", csv_strerror(csv_error(&p))); |
| 97 | fclose(fp); |
| 98 | return -1; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | csv_fini(&p, cb1, cb2, &ps); |
| 103 | fclose(fp); |
| 104 | csv_free(&p); |
| 105 | |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | const char *bankd_pcsc_get_slot_name(struct bankd *bankd, const struct bank_slot *slot) |
| 110 | { |
| 111 | struct pcsc_slot_name *cur; |
| 112 | |
| 113 | llist_for_each_entry(cur, &bankd->pcsc_slot_names, list) { |
| 114 | if (bank_slot_equals(&cur->slot, slot)) |
| 115 | return cur->name; |
| 116 | } |
| 117 | return NULL; |
| 118 | } |