tpm1.c (3eb66e91a25497065c5322b1268cbc3953642227) tpm1.c (bb3b6b0fc57182b568ded61c55eff8a02fcfe27b)
1/*
2 * Copyright (C) 2005, 2012 IBM Corporation
3 *
4 * Authors:
5 * Kent Yoder <key@linux.vnet.ibm.com>
6 * Seiji Munetoh <munetoh@jp.ibm.com>
7 * Stefan Berger <stefanb@us.ibm.com>
8 * Reiner Sailer <sailer@watson.ibm.com>

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69 "S-CRTM Contents ",
70 "POST Contents ",
71 "Table of Devices",
72};
73
74/* returns pointer to start of pos. entry of tcg log */
75static void *tpm1_bios_measurements_start(struct seq_file *m, loff_t *pos)
76{
1/*
2 * Copyright (C) 2005, 2012 IBM Corporation
3 *
4 * Authors:
5 * Kent Yoder <key@linux.vnet.ibm.com>
6 * Seiji Munetoh <munetoh@jp.ibm.com>
7 * Stefan Berger <stefanb@us.ibm.com>
8 * Reiner Sailer <sailer@watson.ibm.com>

--- 60 unchanged lines hidden (view full) ---

69 "S-CRTM Contents ",
70 "POST Contents ",
71 "Table of Devices",
72};
73
74/* returns pointer to start of pos. entry of tcg log */
75static void *tpm1_bios_measurements_start(struct seq_file *m, loff_t *pos)
76{
77 loff_t i;
77 loff_t i = 0;
78 struct tpm_chip *chip = m->private;
79 struct tpm_bios_log *log = &chip->log;
80 void *addr = log->bios_event_log;
81 void *limit = log->bios_event_log_end;
82 struct tcpa_event *event;
83 u32 converted_event_size;
84 u32 converted_event_type;
85
78 struct tpm_chip *chip = m->private;
79 struct tpm_bios_log *log = &chip->log;
80 void *addr = log->bios_event_log;
81 void *limit = log->bios_event_log_end;
82 struct tcpa_event *event;
83 u32 converted_event_size;
84 u32 converted_event_type;
85
86
87 /* read over *pos measurements */
86 /* read over *pos measurements */
88 for (i = 0; i < *pos; i++) {
87 do {
89 event = addr;
90
88 event = addr;
89
90 /* check if current entry is valid */
91 if (addr + sizeof(struct tcpa_event) >= limit)
92 return NULL;
93
91 converted_event_size =
92 do_endian_conversion(event->event_size);
93 converted_event_type =
94 do_endian_conversion(event->event_type);
95
94 converted_event_size =
95 do_endian_conversion(event->event_size);
96 converted_event_type =
97 do_endian_conversion(event->event_type);
98
96 if ((addr + sizeof(struct tcpa_event)) < limit) {
97 if ((converted_event_type == 0) &&
98 (converted_event_size == 0))
99 return NULL;
100 addr += (sizeof(struct tcpa_event) +
101 converted_event_size);
102 }
103 }
99 if (((converted_event_type == 0) && (converted_event_size == 0))
100 || ((addr + sizeof(struct tcpa_event) + converted_event_size)
101 >= limit))
102 return NULL;
104
103
105 /* now check if current entry is valid */
106 if ((addr + sizeof(struct tcpa_event)) >= limit)
107 return NULL;
104 if (i++ == *pos)
105 break;
108
106
109 event = addr;
107 addr += (sizeof(struct tcpa_event) + converted_event_size);
108 } while (1);
110
109
111 converted_event_size = do_endian_conversion(event->event_size);
112 converted_event_type = do_endian_conversion(event->event_type);
113
114 if (((converted_event_type == 0) && (converted_event_size == 0))
115 || ((addr + sizeof(struct tcpa_event) + converted_event_size)
116 >= limit))
117 return NULL;
118
119 return addr;
120}
121
122static void *tpm1_bios_measurements_next(struct seq_file *m, void *v,
123 loff_t *pos)
124{
125 struct tcpa_event *event = v;
126 struct tpm_chip *chip = m->private;

--- 184 unchanged lines hidden --- 		110 return addr;
111}
112
113static void *tpm1_bios_measurements_next(struct seq_file *m, void *v,
114 loff_t *pos)
115{
116 struct tcpa_event *event = v;
117 struct tpm_chip *chip = m->private;

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